TY - RPRT TI - Sperm competition. II-post-copulatory guarding AU - T Fryer AU - C Cannings AU - GT Vickers PY - 1999 DO - 10.1006/jtbi.1998.0879 UR - https://pubmed.ncbi.nlm.nih.gov/10089146/ ID - 10089146 ER -