TY  - RPRT
TI  - Multiple-methods investigation of recharge at a humid-region fractured rock site, Pennsylvania, USA
AU  - C.S. Heppner
AU  - J. R. Nimmo
AU  - G.J. Folmar
AU  - W.J. Gburek
AU  - D. W. Risser
PY  - 2007
DO  - 10.1007/s10040-006-0149-6
UR  - https://pubs.usgs.gov/publication/70030788
ID  - 70030788
ER  -