投影机中的 Biblatex 没有添加额外的字母

投影机中的 Biblatex 没有添加额外的字母

阅读以下帖子后,我使用 beamer 中的 biblatex 来管理我的参考书目和文内引用:如何在 Beamer 上以(作者,年份)形式引用参考文献

然而,我还有一个无法解决的问题:

  1. 我有两份相同的作者年份文档,而 biblatex 并没有在年份后插入额外的字母来区分两者(无论是在文内引用还是在参考书目中): 在此处输入图片描述

我想要的是:

  • (巴塞尔银行监管委员会,2013 年)
  • (巴塞尔银行商学院,2013b、2014)

参考书目也相同。

以下是文本文件的代码:

\documentclass{beamer}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}

\usepackage{dirtytalk}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{amsthm}
\usepackage{enumerate}
\usepackage{scalerel}
\usepackage[export]{adjustbox}
\usepackage{caption}
\usepackage{graphicx}

\usepackage[bibstyle=apa, citestyle = apa, backend=bibtex]{biblatex}
\addbibresource{Bibliography/Library_New}

\renewcommand*{\nameyeardelim}{\addcomma\addspace} 
\renewcommand*{\bibfont}{\tiny} 

\usepackage{hyperref}
\hypersetup{
    colorlinks,
    linkcolor={},
    citecolor={blue},
    urlcolor={blue}
}

\setbeamertemplate{footline}[frame number]
\usefonttheme{structuresmallcapsserif}
\usecolortheme{rose}

\newenvironment{trienv}{\only{\setbeamertemplate{items}[triangle]}}{}
\newenvironment{squareenv}{\only{\setbeamertemplate{items}[square]}}{}
\usepackage{booktabs}
\usepackage{dcolumn} 
\usepackage{rotating} 

\beamertemplatenavigationsymbolsempty

\begin{document}
{
\setbeamertemplate{headline}{}
\begin{frame}[noframenumbering, plain]
\titlepage
\end{frame}
}

\begin{frame}{Citations}
In text: 
\begin{itemize}
    \item \parencite{BCBS_RCAP2013_RWA}
    \item \parencite{BCBSNewMotto2013,BCBSNewMotto2014}
\end{itemize}

\printbibliography[sorting=nty]   
    
\end{frame}


\end{document}

以及bib文件的代码:

@techreport{BCBSNewMotto2013,
author = {{BCBS}},
address = {Basel, Switzerland},
institution = {Bank for International Settlements},
isbn = {9291319406},
number = {October},
pages = {1--23},
title = {{Discussion paper - The regulatory framework: balancing risk sensitivity, simplicity and comparability}},
url = {https://www.bis.org/publ/bcbs258.htm},
year = {2013}
}

@techreport{BCBS_RCAP2013_RWA,
author = {BCBS},
institution = {Bank for International Settlements},
address = {Basel, Switzerland},
abstract = {This document is called BCBS 256. This is where it all started (Basel IV). This document outlines for the first time "formally" the huge variability registered within the RWA computations across banks.},
isbn = {929131966X},
keywords = {BCBS},
number = {October},
pages = {57},
title = {{Regulatory Consistency Assessment Programme (RCAP) – Analysis of risk-weighted assets for credit risk in the banking book}},
year = {2013}
}

@techreport{BCBSNewMotto2014,
abstract = {This document is called BCBS 306. This document introduces for the first time the motto: greater simplicity, comparability and risk sensitivity of the risk-weighted assets computations.},
address = {Basel, Switzerland},
author = {{BCBS}},
isbn = {9789291973804},
keywords = {BCBS},
number = {December 2014},
pages = {12},
institution = {{Bank for International Settlements}},
title = {{Consultative document - Capital floors: the design of a framework based on standardised approaches}},
year = {2014}
}

知道为什么会这样吗?我该如何解决?

多谢!

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