TY  - SER
AU  - Grant, P. R., Grant, B. R., Petren, K.
TI  - The allopatric phase of speciation: the sharp-beaked ground finch (Geospiza difficilis) on the Galápagos Islands
U1  - 598.883598.883 
PY  - 2000///
KW  - The allopatric phase of speciation: the sharp-beaked ground finch (Geospiza difficilis) on the Galápagos Islands
KW  - Darwin's finch, sharp-beaked ground finch, Geospiza difficilis, evolution, Galápagos
KW  - Pinzón de Darwin, pinzón terrestre de pico agudo, Geospiza difficilis, evolución, Galápagos
ER  -