FREYDENBERGER, D.D., NEVISI, H. and REIDENBACH, D., 2011. Weakly unambiguous morphisms. IN: Schwentick, T. and Dürr, C. (eds.). Leibniz International Proceedings in Informatics. 28th Symposium on Theoretical Aspects of Computer Science (STACS’11), Dortmund, Germany, 10th-12th March, pp. 213-224.
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