Citation: Kl. Tang et al., CRITICAL SLOPE GRADIENT FOR COMPULSORY ABANDONMENT OF FARMLAND ON THEHILLY LOESS PLATEAU, Chinese Science Bulletin, 43(5), 1998, pp. 409-412
Citation: Yq. Zhou et al., STUDY OF X-RAY-SPECTRA OF HIGHLY STRIPPED IONS FROM LASER-INDUCED PLASMAS, Journal of quantitative spectroscopy & radiative transfer, 51(1-2), 1994, pp. 425-431