Pseudo-umbilical two- dimensional, manifolds with m-INDEX' pM=1, immersed in a Minkowski space-Time M4

Pseudo-umbilical two- dimensional, manifolds with m-INDEX' pM=1, immersed in a Minkowski space-Time M4 R. Rosca - s.l s.e 1972 - paginatie diferita 25 cm

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