1. A continuous sound spectrum analyzer for animal sounds;Hopkins;Z. Tierpsychol.,1974
2. Cultural transmission of song patterns and dialect development in a free-living bird population;Jenkins;Anim. Behav.,1977
3. Learning and the ontogeny of sound signals in birds;Kroodsma,1982
4. Selective vocal learning in a sparrow;Marler;Science, N.Y.,1977
5. Birdsong and speech: evidence for special processing;Marler,1981