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http://journals.cambridge.org/action/displayAbstract?aid=989356
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HEMANSHU KAUL
and ALEXANDR KOSTOCHKA
(2007).
Extremal Graphs for a Graph Packing Theorem of Sauer and Spencer. Combinatorics, Probability and Computing, 16
,
pp 409-416
doi:10.1017/S0963548306007929