我遇到一个问题，我的参考书目中的一些项目（51 个参考文献中的 2 个）缺少作者姓名，并且用空白替换。这里就是一个例子。我的 .bib 文件中上述项目的条目如下：
@article{Evrard2017,
author = {Evrard, Fabien and Denner, Fabian and van Wachem, Berend},
doi = {10.1016/j.jcp.2017.09.034},
file = {:home/niran90/Documents/Mendeley//Evrard, Denner, van Wachem - 2017 - Estimation of curvature from volume fractions using parabolic reconstruction on two-dimensional unst.pdf:pdf},
issn = {10902716},
journal = {Journal of Computational Physics},
keywords = {Curvature,Height-function,Unstructured mesh,Volume fraction,Volume-of-fluid},
pages = {271--294},
publisher = {Elsevier Inc.},
title = {{Estimation of curvature from volume fractions using parabolic reconstruction on two-dimensional unstructured meshes}},
url = {https://doi.org/10.1016/j.jcp.2017.09.034},
volume = {351},
year = {2017}
}
@article{Evrard2020,
author = {Evrard, Fabien and Denner, Fabian and van Wachem, Berend},
doi = {10.1016/j.jcpx.2020.100060},
file = {:home/niran90/Documents/Mendeley/Evrard, Denner, van Wachem - 2020 - Height-function curvature estimation with arbitrary order on non-uniform Cartesian grids.pdf:pdf},
issn = {25900552},
journal = {Journal of Computational Physics: X},
keywords = {Arbitrary order,Curvature,Height-function,Non-uniform grid,Volume-of-fluid},
month = {jun},
number = {May},
pages = {100060},
publisher = {Elsevier Inc.},
title = {{Height-function curvature estimation with arbitrary order on non-uniform Cartesian grids}},
url = {https://doi.org/10.1016/j.jcpx.2020.100060 https://linkinghub.elsevier.com/retrieve/pii/S2590055220300123},
volume = {7},
year = {2020}
}
我从 Mendeley 导出了 .bib 文件，然后使用以下命令将其导入到我的 main.tex 文件中：
\usepackage[square,comma,numbers,sort&compress]{natbib}
\begin{document}
\addcontentsline{toc}{chapter}{Bibliography}
\bibliographystyle{siam}
\bibliography{Mendeley.bib}
\end{document}
有趣的是，这种情况只发生在一些书目样式中。不过我想使用 siam。有人能给我一些建议吗？