\numberofauthors{3}
%
% You can go ahead and credit authors number 4+ here;
% their names will appear in a section called
% "Additional Authors" just before the Appendices
% (if there are any) or Bibliography (if there
% aren't)

% Put no more than the first THREE authors in the \author command
\author{
%
% The command \alignauthor (no curly braces needed) should
% precede each author name, affiliation/snail-mail address and
% e-mail address. Additionally, tag each line of
% affiliation/address with \affaddr, and tag the
%% e-mail address with \email.
\alignauthor author and author2\\
       \affaddr{addr}\\
       \affaddr{addr}\\
       \affaddr{addr}\\
       \email{email@addr, email2@addr}
\alignauthor author3\\
\alignauthor author4\\
       \affaddr{addr}\\
       \affaddr{addr}\\
       \affaddr{addr}\\
       \email{email@addr}
}
