magic-bibtex-style-tweak.tex

\makeatletter
\renewenvironment{thebibliography}[1]{
  \section*{\refname}%
  \@mkboth{\MakeUppercase\refname}{\MakeUppercase\refname}%
  \list{\@biblabel{\@arabic\c@enumiv}}{
    \leftmargin0pt
    \@openbib@code
    \usecounter{enumiv}
  }%
  \let\p@enumiv\@empty
  \renewcommand\theenumiv{\@arabic\c@enumiv}%
  \sloppy
  \clubpenalty4000
  \@clubpenalty \clubpenalty
  \widowpenalty4000%
  \sfcode`\.\@m
% We redefine the lenghts here
  \setlength{\labelwidth}{0pt}
  \setlength{\labelsep}{1em}
  \setlength{\leftmargin}{0pt}
  \parsep\parskip
  \setlength{\itemsep}{0pt}
  \setlength{\topsep}{0pt}
  \partopsep\parskip
  \itemindent\labelwidth
  \advance\itemindent\labelsep
}
\makeatother

...

\bibliographystyle{plain}

This renders bibliography like this: