\author{{\textmd {\textbf }}\\
  \fontsize{11}{13}\selectfont
  ?First author name\\
  \fontsize{9}{11}\selectfont
  \textit{?Organization name}\\
  \textit{?Organization address}\\
  \textit{?Email: someone@some.place}\\[10pt]
  %
  \fontsize{11}{13}\selectfont
  ?Second author name\\
  \fontsize{9}{11}\selectfont
  \textit{?Organization name}\\
  \textit{?Organization address}\\
  \textit{?Email: someoneelse@some.place}\\[10pt]
  % repeat previous group of commands here for further authors
}
