Adkisson, V. W.; MacLane, Saunders Planar graphs whose homeomorphisms can all be extended for any mapping on the sphere. (English) Zbl 0017.42703 Am. J. Math. 59, 823-832 (1937). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Keywords:Topology × Cite Format Result Cite Review PDF Full Text: DOI