TY - RPRT TI - Multivariate analyses with end-member mixing to characterize groundwater flow: Wind Cave and associated aquifers AU - Andrew J. Long AU - Joshua F. Valder PY - 2011 DO - 10.1016/j.jhydrol.2011.08.028 UR - https://pubs.usgs.gov/publication/70005784 ID - 70005784 ER -