Template:Dyck1888
From Manifold Atlas
W. Dyck, Beiträge zur Analysis situs. I, Math. Ann. 37 (1888), no.2, 457–512. MR1510647 Zbl 20.0519.04
W. Dyck, Beiträge zur Analysis situs. I, Math. Ann. 37 (1888), no.2, 457–512. MR1510647 Zbl 20.0519.04