- Authors: Santos, C. D., Lourenço, P. M., Miranda, A. C., Granadeiro, J. P., Palmeirim, J. M.
- Title: Birds after dark: an efficient and inexpensive system for making long-range observations at night
- Source: Journal of Field Ornithology
- Year Published: 2008
- Volume: 79
- Issue: 3
- Unique Article Identifier: ISI WOS
- link: http://dx.doi.org/10.1111/j.1557-9263.2008.00168.x