TY - RPRT TI - A method for assigning species into groups based on generalized Mahalanobis distance between habitat model coefficients AU - C.J. Williams AU - P.J. Heglund PY - 2008 DO - 10.1007/s10651-008-0093-9 UR - https://pubs.usgs.gov/publication/70037364 ID - 70037364 ER -