TY  - SER
AU  - Gibbs, H. L., Grant, P. R.
TI  - Oscillating selection on Darwin's finches
U1  - 598.883598.883 
PY  - 1987///
KW  - EV, FI, NO
KW  - Oscillating selection on Darwin's finches
N2  -   BIB Now: 3139
ER  -