Longtabu 无法将文本缩小到文本宽度

Longtabu 无法将文本缩小到文本宽度

我有一张很长的表格,上面列有论文、论文作者和其他一些有关论文的信息。我习惯longtabu把它做成一张长表格,因为有些论文有很多作者,所以我想确保表格也适合页面的宽度。这是我的表格,十篇论文的格式相同。

\documentclass[a4paper]{article}

\usepackage[english]{babel}
\usepackage[utf8]{inputenc}
\usepackage{amsmath}
\usepackage{graphicx}
\usepackage{tabu}
\usepackage{longtable}


\begin{document}
\begin{longtabu} to \textwidth {ll}
\endfirsthead
\endhead
\endfoot
\endlastfoot

\multicolumn{2}{l}{\textbf{\begin{tabular}[c]{@{}l@{}}A Pushing Approach for Data Synchronization in Cloud to Reduce\\ Energy Consumption in Mobile Devices\end{tabular}}} \\
Authors                                                    & S. A. L. Carvalho, R.N. Lima and A.G. Silva-Filho \cite{Carvalho:PushingApproach}                                                     \\
Platform                                                   & Android                                                                                                       \\
Logging equipment                                          & Adafruit INA219                                                                                               \\
Application type                                           & Networking application                                                                                        \\
\multicolumn{2}{l}{}                                                                                                                                                       \\
\multicolumn{2}{l}{\textbf{An empirical study of the energy consumption of android applications}}                                                                          \\
Authors                                                    & D. Li, S. Hao, J. Gui and W.G.J. Halfond \cite{Ding:EmpiricalStudy}                                                              \\
Platform                                                   & Android                                                                                                       \\
Logging equipment                                          & Monsoon power meter                                                                                           \\
Application type                                           & Networking application                                                                                        \\
\multicolumn{2}{l}{}                                                                                                                                                       \\
\multicolumn{2}{l}{\textbf{Calculating source line level energy information for android applications}}                                                                     \\
Authors                                                    & D. Li, S. Hao, W.G.J. Halfond and R. Govindan \cite{Ding:CalcSourceLine}                                                                \\
Platform                                                   & Android                                                                                                       \\
Logging equipment                                          & Monsoon power meter                                                                                           \\
Application type                                           & Networking application                                                                                        \\
\multicolumn{2}{l}{}                                                                                                                                                       \\
\multicolumn{2}{l}{\textbf{Empowering Developers to Estimate App Energy Consumption}}                                                                                      \\
Authors                                                    & R. Mittal, A. Kansal and R. Chandra \cite{Mittal:EmpoweringDevelopers}                                                                          \\
Platform                                                   & Android                                                                                                       \\
Logging equipment                                          & Monsoon power meter                                                                                           \\
Application type                                           & Networking application                                                                                        \\
\multicolumn{2}{l}{}                                                                                                                                                       \\
\multicolumn{2}{l}{\textbf{Estimating Mobile Application Energy Consumption using Program Analysis}}                                                                       \\
Authors                                                    & S. Hao, D. Li, W.G.J. Halfond and R. Govindan \cite{Ding:ProgramAnalysis}                                                                \\
Platform                                                   & Android                                                                                                       \\
Logging equipment                                          & Atom LEAP                                                                                                          \\
Application type                                           & Various mobile applications                                                                                        \\
\multicolumn{2}{l}{}                                                                                                                                                       \\
\multicolumn{2}{l}{\textbf{Measurement and Analysis of Energy Consumption on Android Smartphones}}                                                                         \\
Authors                                                    & X. Li, X. Zhang, K. Chen and S. Feng \cite{Li:MeasurementAndroid}                                                                         \\
Platform                                                   & Android                                                                                                       \\
Logging equipment                                          & Standard power meter                                                                                          \\
Application type                                           & Various Android components                                                                                        \\
\multicolumn{2}{l}{}                                                                                                                                                       \\
\multicolumn{2}{l}{\textbf{Measuring mobile phone energy consumption for 802.11 wireless networking}}                                                                      \\
Authors                                                    & A. Rice and S. Hay \cite{Rice:MeasuringWireless}                                                                                           \\
Platform                                                   & Android                                                                                                       \\
Logging equipment                                          & National Instruments PCI-MIO-16E-4                                                                            \\
Application type                                           & Networking application                                                                                        \\
\multicolumn{2}{l}{}                                                                       \\
\multicolumn{2}{l}{\textbf{Optimizing Background Email Sync on Smartphones}}                                                                                               \\
Authors                                                    & F. Xu, Y. Liu, T. Moscibroda, R. Chandra, L. Jin, Y. Zhang and Q. Li \cite{Xu:OptimizingEmailSync}                                         \\
Platform                                                   & Android                                                                                                       \\
Logging equipment                                          & Monsoon power meter                                                                                           \\
Application type                                           & Networking application                                                                                        \\
\multicolumn{2}{l}{}                                                                                                                                                       \\
\multicolumn{2}{l}{\textbf{Reducing Power Consumption in Android Applications}}                                                                                            \\
Authors                                                    & A. Singhai, J. Bose and N. Yendeti \cite{Singhai:ReducingPower}                                                                           \\
Platform                                                   & Android                                                                                                       \\
Logging equipment                                          & Monsoon power meter                                                                                           \\
Application type                                           & Graphics application                                                                                        \\
\multicolumn{2}{l}{}                                                                                                                                                       \\
\multicolumn{2}{l}{\textbf{Switching Push and Pull: An Energy Efficient Notification Approach}}                                                                            \\
Authors                                                    & D. Burgstahler, N. Richerzhagen, F. Englert, R. Hans and R. Steinmetz \cite{Burgstahler:SwitchingPushPull} \\
Platform                                                   & Android                                                                                                       \\
Logging equipment                                          & Hitex Power Scale with ACM Probe                                                                              \\
Application type                                           & Networking application      \\
\end{longtabu}

\end{document}

但是当我渲染此内容时,一些作者姓名超出了文本宽度。这确实让我很困扰,因为我明确将宽度设置为\textwidth。我遗漏了什么?

编辑:更改to \textwidth为类似的内容to 0.2\textwidth也没有效果,好像longtabu忽略了我的宽度。

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