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Luca Cardelli, A semantics of multiple inheritance (PDF), Semantics of Data Types (International Symposium Sophia-Antipolis, France, June 27 – 29, 1984), Lecture Notes in Computer Science, vol. 173, Springer, 1984, DOI:10.1007/3-540-13346-1_2.(Longer version in Information and Computation, 76(2/3): 138-164, February 1988.)
Luca Cardelli, A semantics of multiple inheritance (PDF), Semantics of Data Types (International Symposium Sophia-Antipolis, France, June 27 – 29, 1984), Lecture Notes in Computer Science, vol. 173, Springer, 1984, DOI:10.1007/3-540-13346-1_2.(Longer version in Information and Computation, 76(2/3): 138-164, February 1988.)