Essay by Lahouari Addi entitled: Disappearance as a consequence of a lawless state power = Les disparitions comme expression des rapports d'autorité non institutionnels.
Devoir de mémoire = a biography of disappearance, Algeria 1992- by Omar D. ISBN 9781899282111. Published by Autograph ABP in 2007. Publication and catalogue information, links to buy online and reader comments.