Wikipedia:Articles for deletion/Psychopathia Sexualis (Heinrich Kaan)
You aren't going to find any book reviews for something published that long ago.  says ''We suggest instead a more common sense approach which considers whether the book has been widely cited or written about, whether it has been recently reprinted, the fame that the book enjoyed in the past and its place in the history of literature.''  Use common sense, not just mindlessly look for notable third party references.  I believe this book has "been considered by reliable sources to have made a significant contribution to a notable motion picture, or other art form, or event or political or religious movement
— User:Dream, 01:17, 29 May 2009 (UTC)
Stance: keep
Cited policy: WP:BK (Wikipedia:Notability)