Template:Doweld, 1998d
- Doweld, A.B. 1998. Конспект филогенетической системы трибы Cacteae (Cactoideae – Cactaceae). I. Система подтриб Sclerocactinae – Bravocactinae – Turbinicarpinae [An outline of the phylogenetic system of classification of the tribe Cacteae (Cactoideae – Cactaceae). I. System of the subtribes Sclerocactinae – Bravocactinae – Turbinicarpinae]. Sukkulenty 1998(1): 15–30. (Russian)