Autor:	Schroeder, Michael A., Aldridge, Cameron L., Apa, Anthony D., Bohne, Joseph R., Braun, Clait E., Bunnell, S. Dwight, Connelly, John W., Deibert, Pat A., Gardner, Scott C., Hilliard, Mark A., Kobriger, Gerald D., McAdam, Susan M., McCarthy, Clinton W., McCarthy, John J., Mitchell, L., Rickerson, Eric V., Stiver, San J.
Zdroj:	The Condor, 2004 May 01. 106(2), 363-376.
Databáze:	JSTOR Journals
Externí odkaz:	https://www.jstor.org/stable/1370643 Zobrazit plný text záznamu