PT Journal AU Lauber, U Goldscheider, N TI Use of artificial and natural tracers to assess groundwater transit-time distribution and flow systems in a high-alpine karst system (Wetterstein Mountains, Germany) SO Hydrogeology Journal PY 2014 BP 1807 EP 1824 VL 22 IS 8 DI 10.1007/s10040-014-1173-6 LA english ER