TY  - RPRT
TI  - Do ring doves copulate more than necessary for fertilization?
AU  - M F Cheng
AU  - M Porter
AU  - G Ball
PY  - 1981
DO  - 10.1016/0031-9384(81)90238-9
UR  - https://pubmed.ncbi.nlm.nih.gov/7323169/
ID  - 7323169
ER  -