同一作者的多个准备中引用

Question

我尝试使用 bibtex 引用我论文中的前几章，但其中大部分目前尚未发表，因此我将其引用为准备中的内容。我尝试使用 \noop{} 功能，但遇到了一个问题。当我尝试在第四章中引用前三章时，准备中的最后一章被引用为“I”。例如，当我编译命令时\citep{Vincent17, Chapter2, Chapter3}，我得到以下内容

（Vincent 等人 2017 年；准备中 2017a；I）。

如果我只引用第 3 章，我会得到我期望的结果（Vincent et al. In Preparation 2017b）。我在 In Preparation 中没有添加“a”和“b”，但 Bibtex 没有添加它们。以下是相关引用。我使用的是 natbib 和 hyperref 以及 cleveref 包。

@Article{Vincent17,
  author =   {Matthew T Vincent and Travis O Brenden and James R Bence},
  title =    {Simulation testing the robustness of a multi-region tag-integrated assessment model that exhibits natal homing and estimates natural mortality and reporting rate},
  journal =      {Can. J. Fish. Aquat. Sci.},
  year =     {2017}
}

@Article{Chapter2,
  author =   {Matthew T Vincent and Travis O Brenden and James R Bence},
  title =    {Parameter estimation performance in a recovery-conditioned integrated tagging catch-at-age analysis model},
  journal =      {Manuscript in Preparation},
  year =     {\noop{3333}In~Preparation 2017a}}
}

@Article{Chapter3,
  author =   {Matthew T Vincent and Travis O Brenden and James R Bence},
  title =    {Testing common assumptions used in simulations of multi-region Integrated Tagging and Catch-at-Age Analysis model performance},
  journal =      {Manuscript in Preparation},
  year =     {\noop{4444}In~Preparation 2017b}}
}