TY - RPRT TI - Radiocarbon ages of terrestrial gastropods extend duration of ice-free conditions at the Two Creeks forest bed, Wisconsin, USA AU - Jason A. Rech AU - Jeffrey C. Nekola AU - Jeffrey S. Pigati PY - 2017 DO - 10.1016/j.yqres.2011.11.007 UR - https://pubs.usgs.gov/publication/70044077 ID - 70044077 ER -