Norberg, U. M.; Rayner, J. M. V. (1987). "Ecological Morphology and Flight in Bats (Mammalia; Chiroptera): Wing Adaptations, Flight Performance, Foraging Strategy and Echolocation". Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences. 316 (1179): 335–427. Bibcode:1987RSPTB.316..335N. doi:10.1098/rstb.1987.0030. JSTOR2396486.
Norberg, U. M.; Rayner, J. M. V. (1987). "Ecological Morphology and Flight in Bats (Mammalia; Chiroptera): Wing Adaptations, Flight Performance, Foraging Strategy and Echolocation". Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences. 316 (1179): 335–427. Bibcode:1987RSPTB.316..335N. doi:10.1098/rstb.1987.0030. JSTOR2396486.
Norberg, U. M.; Rayner, J. M. V. (1987). "Ecological Morphology and Flight in Bats (Mammalia; Chiroptera): Wing Adaptations, Flight Performance, Foraging Strategy and Echolocation". Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences. 316 (1179): 335–427. Bibcode:1987RSPTB.316..335N. doi:10.1098/rstb.1987.0030. JSTOR2396486.