Media type: E-Article Title: Algebraic and Logic Programming: Modular algebraic specifications Contributor: Hansen, Horst; Löwe, Michael imprint: Springer Berlin Heidelberg, 1988 Published in: Algebraic and Logic Programming Language: Not determined DOI: 10.1007/3-540-50667-5_69 ISSN: 0302-9743; 1611-3349 Origination: Footnote: