BibTeX 错误： \l 的使用与其定义不匹配

Question

我目前有一个包含许多已定义宏的 LaTeX 文件。

我注意到我的文件中出现一个错误，refs.bib该文件当前仅包含一个 BibTeX 条目，如下所示：

@Article{     latal1997,
  author    = {Lata\l a, Rafa\l},
  title     = {Estimation of moments of sums of independent real random
          variables},
  journal   = {Ann. Probab.},
  fjournal  = {The Annals of Probability},
  volume    = {25},
  year      = {1997},
  number    = {3},
  pages     = {1502--1513},
  issn      = {0091-1798},
  mrclass   = {60E15 (60G50)},
  mrnumber  = {1457628},
  mrreviewer    = {Pawel Hitczenko},
  doi       = {10.1214/aop/1024404522}
}

我收到的错误是：

Use of \l doesn't match its definition.

<write> ...rvs}{{\the \c@NAT@ctr }{1997}{{Lata\l ~
                                                  a}}{{}}}
l.3 ... 1997]{latala1997estimationmomentsindeprvs}
                                                  
If you say, e.g., `\def\a1{...}', then you must always
put `1' after `\a', since control sequence names are
made up of letters only. The macro here has not been
followed by the required stuff, so I'm ignoring it.

问题似乎出\l在 LaTeX 中的特定重音符号上。我已测试过其他重音符号，\L atala但未出现此类错误。

显然，其中一个宏或包似乎与 BibTeX 和主 LaTeX 文件中使用的这种特定重音存在冲突。

由于该文件包含数百行宏，我无法提供完整可重现的示例。

有人能帮助解决这个口音问题吗？