1Semenov A G, Burshtein J F. Groundwater survey method and apparatus R] .US Patent 3398355,1968.
2Puser A Yet al. Software development for the NMR tomography of subsurface water bearing horizons[ R]. USSRAcad Sci, 1991.
3Legchenko A V, Baltassat J M, Beance A, Makki M A and AL-Gaydi B A. Application of the surface proton magnetic resonance method for the detection of fractured granite aquifers[R]. EEGS (European Section) Meeting,Barcelona, 1998,14- 17.