共 3 条
[1]
Nitrogen-isotope ratio studies of soils and groundwater nitrate from alluvial fan aquifers in Texas. Kreitler,C. W. Journal of Hydronautics . 1979
[2]
Isotopic studies of nitrogen pollution in the hydrosphere and atmosphere: a review. Heaton,T. H. E. Chemical Geology . 1986
[3]
GROUND WATER[P]. BURCHAK TATYANA V;SHERENKOV IGOR A.SU1760032A1,1992-09-07