Authorship problems in scholarly journals shake the foundations of research, diminish scientific quality of papers and devalue records of citation tracking services. The 'Publish or Perish' mantra is thought to drive some instances of unfair, honorary authorship, particularly in countries of emerging scientific power. Though causes of honorary, gift, guest and ghost authorship are still ill-defined, it is possible to avoid some of these instances by improving awareness of what constitutes authorship and by adhering to the editorial policies of learned associations. This paper overviews common cases of inappropriate authorship and suggests options to solve related problems by authors, reviewers and editors of scholarly journals.