Media type: E-Article Title: Surfaces minimizing area in their homology class and group actions on 3-manifolds Contributor: Hass, Joel Published: Springer Science and Business Media LLC, 1988 Published in: Mathematische Zeitschrift, 199 (1988) 4, Seite 501-509 Language: English DOI: 10.1007/bf01161639 ISSN: 0025-5874; 1432-1823 Keywords: General Mathematics Origination: Footnote: Access State: Open Access