TY  - GEN
AU  - Smithson,Ann
AU  - Gigord,Luc D B
TI  - The evolution of empty flowers revisited
SN  - 0003-0147
PY  - 2003///0924
KW  - Animals
KW  - Bees
KW  - physiology
KW  - Biological Evolution
KW  - Feeding Behavior
KW  - Flowers
KW  - genetics
KW  - Magnoliopsida
KW  - Models, Biological
N1  - Publication Type: Journal Article; Research Support, Non-U.S. Gov't
UR  - https://doi.org/10.1086/368347
ER  -