  Several years ago, one of us, having noticed that inexperienced scientists
tend to make largely the same mistakes while writing their first papers, was
compelled to write a one-page note summarizing some dos and don'ts intended to
help take care of common problems before they occur. Since these days the
majority of research papers are written collaboratively by groups of
co-authors, we are compelled to extend these recommendations to collaborative
writing as we observe groups of co-authors falling into the same traps again
and again.
