Template:Heikkilä et al., 2011
- Heikkilä, M., Kaila, L., Mutanen, M., Peña, C. & Wahlberg, N. 2011. Cretaceous origin and repeated tertiary diversification of the redefined butterflies. Proceedings of the Royal Society B 279(1731): 1093–1099. DOI: 10.1098/rspb.2011.1430 .