Media type: E-Article Title: Nonstandard varieties of pseudotopological algebraic systems Contributor: Molchanov, V. A. imprint: Springer Science and Business Media LLC, 1992 Published in: Siberian Mathematical Journal Language: English DOI: 10.1007/bf00970480 ISSN: 0037-4466; 1573-9260 Keywords: General Mathematics Origination: Footnote: