Dean, W. R. J.; Siegfried, W. Roy; MacDonald, I. A. W. (1 March 1990). "The Fallacy, Fact, and Fate of Guiding Behavior in the Greater Honeyguide". Conservation Biology. 4 (1): 99–101. Bibcode:1990ConBi...4...99D. doi:10.1111/j.1523-1739.1990.tb00272.x.
Dean, W. R. J.; Siegfried, W. Roy; MacDonald, I. A. W. (1 March 1990). "The Fallacy, Fact, and Fate of Guiding Behavior in the Greater Honeyguide". Conservation Biology. 4 (1): 99–101. Bibcode:1990ConBi...4...99D. doi:10.1111/j.1523-1739.1990.tb00272.x.