TY - RPRT TI - A sample-freezing drive shoe for a wire line piston core sampler AU - F. Murphy AU - W.N. Herkelrath PY - 2007 DO - 10.1111/j.1745-6592.1996.tb00143.x UR - https://pubs.usgs.gov/publication/70019072 ID - 70019072 ER -