TY - RPRT TI - Using stable isotopes of carbon to investigate the seasonal variation of carbon transfer in a northwestern Arkansas cave AU - Katherine J. Knierim AU - Erik Pollock AU - Phillip D. Hays AU - Jam Khojasteh PY - 2015 DO - 10.4311/2011es0264 UR - https://pubs.usgs.gov/publication/70128708 ID - 70128708 ER -