Template:Dyck1890
From Manifold Atlas
W. Dyck, Beiträge zur Analysis situs. II, Math. Ann. 37 (1890) no.2, 273–316. MR510647 Zbl 22.0547.02
W. Dyck, Beiträge zur Analysis situs. II, Math. Ann. 37 (1890) no.2, 273–316. MR510647 Zbl 22.0547.02