Reference
Johannes Horst Schröder, I.S. Otten (1999): Courtship and Female Choice Behavior in the Male-Polymorphic High-Backed Pygmy Swordtail, Xiphophorus multilineatus (Poeciliidae). – Berichte des naturwissenschaftlichen-medizinischen Verein Innsbruck – 86: 251 - 269.