Template:Poincaré1953
From Manifold Atlas
H. Poincaré, Oeuvres. Tome VI, Paris 1953. MR1401792 (98m:01041) Zbl 894.01020
H. Poincaré, Oeuvres. Tome VI, Paris 1953. MR1401792 (98m:01041) Zbl 894.01020