TY - RPRT TI - Differential selection to avoid hybridization in two toad species. AU - Karin S Pfennig AU - Marie A Simovich PY - 2002 DO - 10.1111/j.0014-3820.2002.tb00198.x UR - https://pubmed.ncbi.nlm.nih.gov/12389729/ ID - 12389729 ER -