Munkholm HJ. Borsuk-Ulam Type Theorems for Proper $Z_p$-Actions on (Mod $p$ Homology) $n$-Spheres. Math. Scand. [Internet]. 1969 Dec. 1 [cited 2026 Jul. 25];24:167-85. Available from: https://journals.msp.org/mscand/article/view/2372