Media type: Book; Conference Proceedings Title: Optimization techniques 9. Warsaw, Sept. 4-8, 1979, 2 Event: Conference on Optimization Techniques imprint: 1980 Published in: Optimization techniques ; 9,2 Lecture notes in control and information sciences ; 23 Language: English ISBN: 3540100814; 0387100814 Keywords: Konferenzschrift Origination: Footnote: