Population structure and colour variation of the cichlid fishes Labeotropheus fuelleborni Ahl along a recently formed archipelago of rocky habitat patches in southern Lake Malawi
M. E. Arnegard, J. A. Markert, P. D. Danley, J. R. Stauffer, A. J. Ambali, and T. D. Kocher
Proc Biol Sci. 1999 January 22; 266(1415): 119. doi: 10.1098/rspb.1999.0611.