المؤلفون: Ackerman, Joshua T., Eadie, John M., Szymanski, Michael L., Caswell, Jason H., Vrtiska, Mark P., Raedeke, Andrew H., Checkett, J. Michael, Afton, Alan D., Moore, Thomas G., Caswell, F. Dale, Walters, Rich A., Humburg, Dale D., Yee, Julie L.

المصدر: The Journal of Wildlife Management, 2006 Jun 01. 70(3), 799-804.

URL الوصول: https://www.jstor.org/stable/3803435

المؤلفون: Checkett, J. Michael, Drobney, Ronald D., Petrie, Mark J., Graber, David A.

المصدر: Wildlife Society Bulletin (1973-2006), 2002 Dec 01. 30(4), 1113-1119.

URL الوصول: https://www.jstor.org/stable/3784280

المؤلفون: Drobney, Ronald D., Checkett, J. Michael, Coluccy, John M., Graber, David A.

المصدر: The Auk, 1999 Oct 01. 116(4), 1145-1147.

URL الوصول: https://www.jstor.org/stable/4089697

المؤلفون: Checkett, J. Michael, Coluccy, John M., Drobney, Ronald D.

المصدر: The Wilson Bulletin, 2001 Mar 01. 113(1), 109-110.

URL الوصول: https://www.jstor.org/stable/4164313