我在使用 BibTeX 编译参考书目时遇到了问题。以前它工作正常，但现在当我运行 BibTeX 时，我从控制台获取以下代码：
This is BibTeX, Version 0.99d (TeX Live 2015)
The top-level auxiliary file: Thesis.aux
The style file: unsrt.bst
Database file #1: Libreria_personale.bib
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这是原始的 LaTeX 代码：
\documentclass[12pt]{report}
...
\begin{document}
\bibliographystyle{unsrt}
\bibliography{Libreria_personale}
\end{document}
这是 .bib 文件：
...
@article{colstrup_pregnancy_2013,
title = {Pregnancy in women with type 1 diabetes: have the goals of {{St}}. {{Vincent}} declaration been met concerning foetal and neonatal complications?},
volume = {26},
issn = {1476-4954},
doi = {10.3109/14767058.2013.794214},
shorttitle = {Pregnancy in women with type 1 diabetes},
abstract = {OBJECTIVE: In 1989 the St. Vincent declaration set a five-year target for approximating outcomes of pregnancies in women with diabetes to those of the background population. We investigated and quantified the risk of adverse pregnancy outcomes in pregnant women with type 1 diabetes (T1DM) to evaluate if the goals of the 1989 St. Vincent Declaration have been obtained concerning foetal and neonatal complications.
METHODS: Twelve population-based studies published within the last 10 years with in total 14,099 women with T1DM and 4,035,373 women from the background population were identified. The prevalence of four foetal and neonatal complications was compared.
RESULTS: In women with T1DM versus the background population, congenital malformations occurred in 5.0\% (2.2-9.0) (weighted mean and range) versus 2.1\% (1.5-2.9), relative risk (RR) = 2.4, perinatal mortality in 2.7\% (2.0-6.6) versus 0.72\% (0.48-0.9), RR = 3.7, preterm delivery in 25.2\% (13.0-41.7) versus 6.0\% (4.7-7.1), RR = 4.2 and delivery of large for gestational infants in 54.2\% (45.1-62.5) versus 10.0\%, RR = 4.5. Early pregnancy HbA1c was positively associated with adverse pregnancy outcomes.
CONCLUSION: The risk of adverse pregnancy outcomes was two to five times increased in women with T1DM compared with the general population. The goals of the St. Vincent declaration have not been achieved.},
timestamp = {2016-06-06T16:16:02Z},
number = {17},
journaltitle = {The Journal of Maternal-Fetal \& Neonatal Medicine: The Official Journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians},
shortjournal = {J. Matern. Fetal. Neonatal. Med.},
author = {Colstrup, Miriam and Mathiesen, Elisabeth R. and Damm, Peter and Jensen, Dorte M. and Ringholm, Lene},
date = {2013-11},
pages = {1682--1686},
note = {00018},
keywords = {Diabetes Mellitus; Type 1,Female,Goals,Guideline Adherence,Humans,Infant Mortality,Infant; Newborn,Infant; Newborn; Diseases,Pregnancy,Pregnancy Complications,Pregnancy in Diabetics,Pregnancy Outcome},
eprinttype = {pmid},
eprint = {23570252}
}
@article{chan_management_2004,
title = {Management and outcome of sight-threatening diabetic retinopathy in pregnancy},
volume = {18},
issn = {0950-222X},
doi = {10.1038/sj.eye.6701340},
abstract = {AIMS: To report the management and outcomes of sight-threatening diabetic retinopathy in pregnancy.
METHODS: A retrospective review of 8 diabetic females who developed pregnancy related sight-threatening diabetic retinopathy requiring treatment over a 12-year period.
RESULTS: In total, 16 eyes of eight patients were included in this series. The mean age of the patients at presentation was 30.75 years +/-3.8 SD and the mean duration of diabetes was 21.0 years +/-5.1 SD. The mean follow-up period was 46.75 months +/-47.2 SD. A total of 87.5\% of patients showed progression of diabetic retinopathy during pregnancy, 71\% of which were in the sight-threatening proliferative category. In the postpartum period, 81\% of patients continued to progress to proliferative diabetic retinopathy, requiring panretinal photocoagulation and multiple other surgical procedures. In all, 69\% of eyes retained visual acuity equal to or better than 0.3 logMAR units (6/12).
CONCLUSION: Sight-threatening diabetic retinopathy in pregnancy is a rare disease, but it can have devastating consequences for mother and child. Laser photocoagulation should be considered for pregnant women with severe preproliferative diabetic retinopathy. Proliferative diabetic retinopathy may not regress postpartum. Close followup should be extended in the postpartum period in this group of patients until the retinopathy is stabilised. The presence of combined rhegmatogenous and tractional retinal detachment and neovascular glaucoma were associated with the worst outcome.},
timestamp = {2016-05-19T13:00:50Z},
number = {8},
journaltitle = {Eye (London, England)},
shortjournal = {Eye (Lond)},
author = {Chan, W. C. and Lim, L. T. and Quinn, M. J. and Knox, F. A. and McCance, D. and Best, R. M.},
date = {2004-08},
pages = {826--832},
note = {00037},
keywords = {Adult,Diabetic Retinopathy,Disease Progression,Female,Follow-Up Studies,Humans,Laser Coagulation,Parity,Pregnancy,Pregnancy in Diabetics,Pregnancy Outcome,Prognosis,Retrospective Studies,Treatment Outcome,Visual Acuity},
file = {UpToDate Record:/Users/luigibonini/Library/Application Support/Zotero/Profiles/mdapclju.default/zotero/storage/GS2TVEGE/51.html:;Chan et al_2004_Management and outcome of sight-threatening diabetic retinopathy in pregnancy.pdf:/Users/luigibonini/Library/Application Support/Zotero/Profiles/mdapclju.default/zotero/storage/ZPZPWIRV/Chan et al_2004_Management and outcome of sight-threatening diabetic retinopathy in pregnancy.pdf:application/pdf},
eprinttype = {pmid},
eprint = {14976547}
}
@article{albrecht_diabetes_2010,
title = {Diabetes trends among delivery hospitalizations in the {{U}}.{{S}}., 1994-2004},
volume = {33},
issn = {1935-5548},
doi = {10.2337/dc09-1801},
abstract = {OBJECTIVE: To examine trends in the prevalence of diabetes among delivery hospitalizations in the U.S. and to describe the characteristics of these hospitalizations.
RESEARCH DESIGN AND METHODS: Hospital discharge data from 1994 through 2004 were obtained from the Nationwide Inpatient Sample. Diagnosis codes were selected for gestational diabetes mellitus (GDM), type 1 diabetes, type 2 diabetes, and unspecified diabetes. Rates of delivery hospitalization with diabetes were calculated per 100 deliveries.
RESULTS: Overall, an estimated 1,863,746 hospital delivery discharges contained a diabetes diagnosis, corresponding to a rate of 4.3 per 100 deliveries over the 11-year period. GDM accounted for the largest proportion of delivery hospitalizations with diabetes (84.7\%), followed by type 1 (7\%), type 2 (4.7\%), and unspecified diabetes (3.6\%). From 1994 to 2004, the rates for all diabetes, GDM, type 1 diabetes, and type 2 diabetes significantly increased overall and within each age-group (15-24, 25-34, and \ensuremath{>} or =35 years) (P \ensuremath{<} 0.05). The largest percent increase for all ages was among type 2 diabetes (367\%). By age-group, the greatest percent increases for each diabetes type were among the two younger groups. Significant predictors of diabetes at delivery included age \ensuremath{>} or =35 years vs. 15-24 years (odds ratio 4.80 [95\% CI 4.72-4.89]), urban versus rural location (1.14 [1.11-1.17]), and Medicaid/Medicare versus other payment sources (1.29 [1.26-1.32]).
CONCLUSIONS: Given the increasing prevalence of diabetes among delivery hospitalizations, particularly among younger women, it will be important to monitor trends in the pregnant population and target strategies to minimize risk for maternal/fetal complications.},
timestamp = {2016-05-19T13:00:53Z},
number = {4},
journaltitle = {Diabetes Care},
shortjournal = {Diabetes Care},
author = {Albrecht, Sandra S. and Kuklina, Elena V. and Bansil, Pooja and Jamieson, Denise J. and Whiteman, Maura K. and Kourtis, Athena P. and Posner, Samuel F. and Callaghan, William M.},
date = {2010-04},
pages = {768--773},
note = {00109},
keywords = {Delivery; Obstetric,Diabetes Mellitus,Female,Hospitalization,Humans,Pregnancy,United States},
file = {UpToDate Record:/Users/luigibonini/Library/Application Support/Zotero/Profiles/mdapclju.default/zotero/storage/IHF9GTS3/4.html:;Albrecht et al_2010_Diabetes trends among delivery hospitalizations in the U.pdf:/Users/luigibonini/Library/Application Support/Zotero/Profiles/mdapclju.default/zotero/storage/SA2B5PIG/Albrecht et al_2010_Diabetes trends among delivery hospitalizations in the U.pdf:application/pdf},
eprinttype = {pmid},
eprint = {20067968},
pmcid = {PMC2845025}
}
@article{bell_trends_2008,
title = {Trends in prevalence and outcomes of pregnancy in women with pre-existing type {{I}} and type {{II}} diabetes},
volume = {115},
issn = {1471-0528},
doi = {10.1111/j.1471-0528.2007.01644.x},
abstract = {OBJECTIVE: To describe recent trends in prevalence, outcomes and indicators of care for women with pre-existing type I or type II diabetes.
DESIGN: Regional population-based survey.
SETTING: All maternity units in the North of England.
POPULATION: A total of 1258 pregnancies in women with pre-existing diabetes delivered between 1996 and 2004.
METHODS: Data from the Northern Diabetic Pregnancy Survey. Outcome of pregnancy cross-validated with the Northern Congenital Abnormality Survey and the Northern Perinatal Mortality Survey.
MAIN OUTCOME MEASURES: Perinatal mortality, congenital anomaly and total adverse perinatal outcome (perinatal mortality and live births with congenital anomaly).
RESULTS: The prevalence of pregestational diabetes increased from 3.1 per 1000 births in 1996-98 to 4.7 per 1000 in 2002-04 (test for linear trend, P \ensuremath{<} 0.0001), driven mainly by a sharp increase in type II diabetes. Perinatal mortality declined from 48 per 1000 births in 1996-98 to 23 per 1000 in 2002-04 (P = 0.064). There was a significant reduction in total adverse perinatal outcome rate (P = 0.0194) from 142 per 1000 in 1996-98 to 86 per 1000 in 2002-04. There were substantial improvements in indicators of care before and during pregnancy and in glycaemic control throughout pregnancy, but indicators of preconceptual care, such as use of folic acid, remained disappointing.
CONCLUSION: We observed improvements in pregnancy care and outcomes for women with diabetes in a region with an established audit and feedback cycle. There remains considerable scope for further improvement, particularly in periconceptual glycaemic control. The rising prevalence of type II diabetes presents a challenge to further improvement.},
timestamp = {2016-05-21T19:02:21Z},
number = {4},
journaltitle = {BJOG: an international journal of obstetrics and gynaecology},
shortjournal = {BJOG},
author = {Bell, R. and Bailey, K. and Cresswell, T. and Hawthorne, G. and Critchley, J. and Lewis-Barned, N. and {Northern Diabetic Pregnancy Survey Steering Group}},
date = {2008-03},
pages = {445--452},
note = {00119},
keywords = {Adult,Blood Glucose,Congenital Abnormalities,Delivery; Obstetric,Diabetes Mellitus; Type 1,Diabetes Mellitus; Type 2,England,Female,Hemoglobin A; Glycosylated,Humans,Hypoglycemic Agents,Perinatal Mortality,Postnatal Care,Pregnancy,Pregnancy in Diabetics,Pregnancy Outcome,Pregnancy Trimester; First,Prenatal Care,Prevalence},
file = {Bell et al_2008_Trends in prevalence and outcomes of pregnancy in women with pre-existing type.pdf:/Users/luigibonini/Drive/Articles Zotero/Bell et al_2008_Trends in prevalence and outcomes of pregnancy in women with pre-existing type.pdf:application/pdf},
eprinttype = {pmid},
eprint = {18271881}
}
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我用来编制参考书目的软件是 Zotero。
答案1
Zotero 不会编译您的 bib 文件，它只是一个帮助您创建 bib 文件的编辑器。
要编译 bib 文件，你必须先编译 TeX 代码（pdflatex mwe.tex假设你的 TeX 文件名为mwe.tex），然后你必须用命令建立书目 bibtex mwe（均在终端/控制台上输入）。然后再编译两次pdflatex mwe.tex。
您向我们展示的警告非常清楚：您的 bib 条目中缺少字段，警告中对此进行了解释。只需在您的条目中添加所需的信息即可……
例如消息
Warning--empty year in colstrup_pregnancy_2013
告诉你添加行
year = {2016},
（根据需要更改数字）添加到号码布条目 colstrup_pregnancy_2013。
也许 Zotero 已经更改（更新？）或者您更改了配置？Zotero 经常会添加几个字段，例如，abstract这会扰乱 bib 文件bibtex。删除这些不必要的字段。如果您需要year或，则date取决于您如何编译 bib 文件。例如，biblatex可以处理date，bibtex通常需要year。检查 Zotero 是否为创建了 bib 文件bibtex！
答案2
这似乎是由于 bib 文件的条目错误造成的。我认为自编译以来可能进行了编辑。试试这个
- 删除 bib 文件
- 使用 Zotero 创建一个新的 bib 文件（确保您格式化的每个条目都是正确的）。
- 使用 LaTex 重新编译