Template:Doweld, 2004

• Doweld, A.B. 2004. Система рода Pereskia Mill. (Pereskioideae-Cactaceae). Byulleten’ Moskovskogo Obshchestva Ispytatelei Prirody, Otdel Biologicheskii 109(4): 44–49. (Russian) DJVU  
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