Media type: E-Article Title: On algebras of pseudo differential operators In Contributor: Illner, Reinhard imprint: Informa UK Limited, 1977 Published in: Communications in Partial Differential Equations Language: English DOI: 10.1080/03605307708820034 ISSN: 0360-5302; 1532-4133 Keywords: Applied Mathematics ; Analysis Origination: Footnote: