Zhao, Ren; Zhang, Lichun Stability of de Sitter spacetime. (Chinese. English summary) Zbl 0977.83004 Acta Math. Sci. (Chin. Ed.) 20, Suppl., 583-588 (2000). MSC: 83C05 PDFBibTeX XMLCite \textit{R. Zhao} and \textit{L. Zhang}, Acta Math. Sci. (Chin. Ed.) 20, 583--588 (2000; Zbl 0977.83004)
Zhang, Lichun; Zhao, Ren Hawking effect of the Dirac particle in spherically symmetric nonstatic charged space time. (Chinese. English summary) Zbl 0952.83026 Acta Math. Sci. (Chin. Ed.) 19, No. 5, 573-578 (1999). MSC: 83C57 80A10 83C60 83C50 PDFBibTeX XMLCite \textit{L. Zhang} and \textit{R. Zhao}, Acta Math. Sci. (Chin. Ed.) 19, No. 5, 573--578 (1999; Zbl 0952.83026)