Media type: E-Article Title: An index and a Nielsen number for n-valued multifunctions Contributor: Schirmer, Helga imprint: Institute of Mathematics, Polish Academy of Sciences, 1984 Published in: Fundamenta Mathematicae Language: English DOI: 10.4064/fm-124-3-207-219 ISSN: 0016-2736; 1730-6329 Keywords: Algebra and Number Theory Origination: Footnote: Access State: Open Access