TY - RPRT TI - Numerical modeling of coupled nitrification-denitrification in sediment perfusion cores from the hyporheic zone of the Shingobee River, MN AU - R.W. Sheibley AU - A. P. Jackman AU - J.H. Duff AU - F.J. Triska PY - 2003 DO - 10.1016/s0309-1708(03)00088-5 UR - https://pubs.usgs.gov/publication/70025233 ID - 70025233 ER -