TY - RPRT TI - Stable isotope fractionation of selenium by natural microbial consortia AU - A.S. Ellis AU - T.M. Johnson AU - M.J. Herbel AU - T.D. Bullen PY - 2003 DO - 10.1016/s0009-2541(02)00391-1 UR - https://pubs.usgs.gov/publication/70025747 ID - 70025747 ER -