G. Neuweiler, W. Metzner, U. Heilmann, R. R�bsamen, M. Eckrich, H. H. Costa,
Foraging behaviour and echolocation in the rufous horseshoe bat ( Rhinolophus rouxi ) of Sri Lanka Behavioral Ecology and Sociobiology. ,vol. 20, pp. 53- 67 ,(1987) ,
10.1007/BF00292166