Minotaur is critical for primary piRNA biogenesis., Wakimoto Barbara T, Vagin Vasily V, Yu Yang, Jankowska Anna, Luo Yicheng, Wasik Kaja A, Malone Colin D, Harrison Emily, Rosebrock Adam, Fagegaltier Delphine, and Muerdter Felix, RNA (New York, N.Y.), 2013 Aug, Volume 19, Issue 8, p.1064-77 (2013)