TY - RPRT TI - A half century of change in alpine treeline patterns at Glacier National Park, Montana, U.S.A. AU - F.L. Klasner AU - D.B. Fagre PY - 2002 DO - 10.2307/1552508 UR - https://pubs.usgs.gov/publication/70025053 ID - 70025053 ER -