Si-Qin Ge, Yi Hua, Jing Ren, Adam Ślipiński, Bruce Heming, Rolf Georg Beutel, Xing-Ke Yang & Benjamin Wipfler (2015) Transformation of head structures during the metamorphosis of Chrysomela populi (Coleoptera: Chrysomelidae). ARTHROPOD SYSTEMATICS & PHYLOGENY, 73 (1): 129-152.