BioStor
 | Another small Contribution to African Ornithology (1900) Novitates Zoologicae 7: 25-53 |
 | Contribution a la faune ornithologique de la region des lacs de l'Afrique Central (1918) Revue Zoologique Africaine 5: 209-297 |
 | Types of birds in the Tring Museum. B. Types in the general collection E Hartert (1925) Novitates Zoologicae 32: 138-157 |