TY  - RPRT
TI  - The species concept.
AU  - B H BURMA
AU  - E MAYR
PY  - 1949
DO  - 10.1111/j.1558-5646.1949.tb00037.x
UR  - https://pubmed.ncbi.nlm.nih.gov/15396753/
ID  - 15396753
ER  -