Stapanian MA, Smith CC, Finck EJ. Weather effects on winter birds: the response of a Kansas winter bird community to weather, photoperiod, and year. Wilson Bulletin. 1999;111:550 -558.

Stapanian MA, Smith CC. How fox squirrels influence the invasion of prairies by nut-bearing trees. Journal of Mammalogy. 1986;67:326 -332. doi:10.2307/1380886 .