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@article{MAN_1971__194_162187, author = {D.E. BLAIR and G.D. LUDDEN and K. YANO}, title = {On the {Intrinsic} {Geometry} of {Sn} x {Sn.}}, journal = {Mathematische Annalen}, pages = {68--77}, publisher = {mathdoc}, volume = {194}, year = {1971}, zbl = {0209.53302}, url = {http://geodesic.mathdoc.fr/item/MAN_1971__194_162187/} }
D.E. BLAIR; G.D. LUDDEN; K. YANO. On the Intrinsic Geometry of Sn x Sn.. Mathematische Annalen, Tome 194 (1971), pp. 68-77. http://geodesic.mathdoc.fr/item/MAN_1971__194_162187/