Graphs in which each C4 spans K4

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Institute of Mathematics, Hungarian Academy of Sciences, Budapest, Hungary [1 ]
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Discrete Math | / 1-3卷 / 263-268期
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* Correspondence address: Department of Discrete Mathematics; Adam Mickiewicz University; Matejki; 48149; 60-769; Poznair; Poland. On leave from Mathematical Institute of the Polish Academy of Sciences and Adam Mickiewicz University; Pomali; Poland. Partially supported by KBN grant 2 1087 91 01. ’ Supported by OTKA grant 2570;
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