Schlenker, Jean-Marc Surfaces with negative intrinsic curvature in hyperbolic space. (Surfaces à courbure extrinsèque négative dans l’espace hyperbolique.) (French) Zbl 1029.53068 Ann. Sci. Éc. Norm. Supér. (4) 34, No. 1, 79-130 (2001). Reviewer: Andrzej Piatkowski (Łódź) MSC: 53C40 PDF BibTeX XML Cite \textit{J.-M. Schlenker}, Ann. Sci. Éc. Norm. Supér. (4) 34, No. 1, 79--130 (2001; Zbl 1029.53068) Full Text: DOI Numdam EuDML
Poznjak, E. G.; Sikin, E. V. Surfaces of negative curvature. (English) Zbl 0375.53029 J. Sov. Math. 5, 865-887 (1976). MSC: 53C40 53-02 PDF BibTeX XML Cite \textit{E. G. Poznjak} and \textit{E. V. Sikin}, J. Sov. Math. 5, 865--887 (1976; Zbl 0375.53029) Full Text: DOI