Janz, Niklas (1999). "The role of Nectar sources for oviposition decisions of the Common Blue Butterfly Polyommatus icarus". Oikos. 109 (3): 535–538. doi:10.1111/j.0030-1299.2005.13817.x.
Burghardt, Frank (2000). "Flavonoid sequestration by the common blue butterfly Polyommatus icarus: quantitative intraspecific variation in relation to larval hostplant, sex and body size". Biochemical Systematics and Ecology. 29 (9): 875–889. doi:10.1016/s0305-1978(01)00036-9. PMID11445289.
Burghardt, Frank (2000). "Flavonoid sequestration by the common blue butterfly Polyommatus icarus: quantitative intraspecific variation in relation to larval hostplant, sex and body size". Biochemical Systematics and Ecology. 29 (9): 875–889. doi:10.1016/s0305-1978(01)00036-9. PMID11445289.