Template:Kostenko & Mamkaev, 1990
- Kostenko, A.G. & Mamkaev, Yu.V. 1990. The position of "green convoluts" in the system of acoel turbellarians (Turbellaria, Acoela). 1. Simsagittifera gen. n. 2. Sagittiferidae fam. n. Zoologicheskii Zhurnal 69(6): 11–21; 69(7): 5–16.