Fibrés vectoriels positifs sur une courbe elliptique Hiroshi Umemura (1972) Bulletin de la Société Mathématique de France
Flat tensor product surfaces of pseudo-Euclidean curves Adela Mihai, Bogdan Heroiu (2014) Annales Polonici Mathematici We determine the flat tensor product surfaces of two curves in pseudo-Euclidean spaces of arbitrary dimensions.