BioStor
 | On a few Coleoptera from the island of Riouw C Ritsema (1887) Notes from the Leyden Museum 9: 213-216 |
 | Über Camelonotus Fairm., Horonotus Burm., Neodipelicus Rits. Und Palmerstonia Blackb Heller K.m. (1897) Notes from the Leyden Museum 19: 163-173 |