Contrasted modes of evolution in the same genome: allozymes and adaptive change in Heliconiusv. 76No. 4National Academy of Sciences (U.S.)1924–1928
Turner, John R. G., Johnson, Michael S., and Eanes, Walter F. 1979. "Contrasted modes of evolution in the same genome: allozymes and adaptive change in Heliconius." Proceedings of the National Academy of Sciences of the United States of America, 76, (4) 1924–1928.