TY  - RPRT
TI  - Selection-based learning in bird song development.
AU  - D A Nelson
AU  - P Marler
PY  - 1994
DO  - 10.1073/pnas.91.22.10498
UR  - https://pubmed.ncbi.nlm.nih.gov/7937982/
ID  - 7937982
ER  -