Gary L. Alt, George J. Matula, Jr., Floyd W. Alt, James S. Lindzey, Dynamics of Home Range and Movements of Adult Black Bears in Northeastern Pennsylvania, Bears: Their Biology and Management, Vol. 4, A Selection of Papers from the Fourth International Conference on Bear Research and Management, Kalispell, Montana, USA, February 1977 (1980), pp. 131-136
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Alt et al. (1980) studied this question.