TY  - JOUR 
T1  - Identification of Tibicen cicada species by a Principal Components Analysis of their songs
JO  - Anais da Academia Brasileira de Ciências
A1  - Ohya, Eiji
SN  - 0001-3765
UL  - 10.1590/S0001-37652004000200038
VL  - 76 
Y1  - 2004
PB  - Brasil 
ER  -