TY - RPRT TI - Effects of spatial and temporal variation of acid-volatile sulfide on the bioavailability of copper and zinc in freshwater sediments AU - John M. Besser AU - Christopher G. Ingersoll AU - John P. Giesty PY - 1996 DO - 10.1002/etc.5620150310 UR - https://pubs.usgs.gov/publication/70193440 ID - 70193440 ER -