\addtocontents{toc}{\textit{\Author}\\}


But I still have no clue how to indent the line(s) containing the title (if the title extends over more than one line, all lines should be indented by the same amount):

=== Author's Name ===

=== Title: 1st Line ===
=== Title: 2nd Line ===


Is there a simple solution?

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Instead of adding "(2)" to denote a follow-up question, I have made the question title more specific (and changed some tags). I hope you don't mind. –  lockstep Jan 4 '12 at 13:15

Here is an example inspired of a few internal memoir macros, should work with any class:

\documentclass[a4paper]{memoir}
\newcommand\Title{This is a very long and complicated title that spans
several lines going on and on}
\protect\formatarticle{#1}{#2}}}
\newcommand\formatauthor[1]{\noindent \textit{#1}\par}
\newcommand\formatarticle[2]{%
\begingroup%
\nopagebreak%
\noindent%
\setlength\leftskip{1cm}%
\setlength\rightskip{4em}%
\setlength\parfillskip{-4em}%
\textit{Title:}~{#1}\dotfill\hbox to 4em{\hfil #2}\par%
\endgroup%
}
\begin{document}

\tableofcontents*

\chapter{test}
\AuthorInToc{An Author}
\ArticleInToc{\Title}{1--5}
\end{document}


The idea is to remember that each entry in the TOC is actually a paragraph by it self, so treat it like that.

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