TY - RPRT TI - Nutrient feedbacks to soil heterotrophic nitrogen fixation in forests AU - Steven S. Perakis AU - Julie C. Pett-Ridge AU - Christina E. Catricala PY - 2017 DO - 10.1007/s10533-017-0341-x UR - https://pubs.usgs.gov/publication/70188201 ID - 70188201 ER -