Media type: E-Article Title: Spectrum of quasielliptic differential operators Contributor: Guseinov, R. G. imprint: Springer Science and Business Media LLC, 1993 Published in: Mathematical Notes Language: English DOI: 10.1007/bf01212606 ISSN: 0001-4346; 1573-8876 Keywords: General Mathematics Origination: Footnote: