1. The morphology of the male and female terminalia and external genitalia of the earwig, Labidura riparia (Pallas) (Dermaptera, Labiduridae);Bhatnagar;The Entomologist,1964
2. Anatomy of the male and female reproductive system of the earwig Labidura riparia (Pallas) (Labiduridae: Dermaptera);Bhatnagar;Research Bulletin of the Panjab University, New Series,1965
3. Morphologie abdominale des machilides (Insecta Thysanura) - I. Squelette et musculature des segments prégénitaux;Bitsch;Annales des Sciences naturelles Série,1973
4. Morphologie abdominale des machilides (Thysanura) – II. Squelette et musculature des segments génitaux femelles;Bitsch;International Journal of Insect Morphology & Embryology,1974
5. The morphological groundplan of Hexapoda: critical reviews of recent concepts;Bitsch;Annales de la Société Entomologique de France, Nouvelle Série,1994