TY - RPRT TI - National assessment of historical shoreline change: a pilot study of historical coastal bluff retreat in the Great Lakes, Erie, Pennsylvania AU - Cheryl J. Hapke AU - Shamus Malone AU - Meredith G. Kratzmann PY - 2009 DO - 10.3133/ofr20091042 UR - https://pubs.usgs.gov/publication/ofr20091042 ID - ofr20091042 ER -