共 50 条
- [33] A field evaluation of distance measurement error in auditory avian point count surveys JOURNAL OF WILDLIFE MANAGEMENT, 2007, 71 (08): : 2759 - 2766
- [37] COMPARISON OF CONVENTIONAL AND GRID TECHNIQUES FOR CHEST RADIOGRAPHY IN FIELD SURVEYS BRITISH JOURNAL OF INDUSTRIAL MEDICINE, 1973, 30 (04): : 365 - 374