TY - RPRT TI - Percolation induced heat transfer in deep unsaturated zones AU - N. Lu AU - G.D. LeCain PY - 2003 DO - 10.1061/(asce)1090-0241(2003)129:11(1040) UR - https://pubs.usgs.gov/publication/70024968 ID - 70024968 ER -