# Article

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References:
[1] P. ERDÖS J. SPENCER: Probabilistic methods in combinatorics. Akad. Kiado Budapest and Academic Press, New York and London, 1974. MR 0382007
[2] E. L. LAWLER: Combinatorial Optimisation: Networks and Matroids. Holt, Reinhart and Winston 1976. MR 0439106
[3] A. LUBOTZKY R. PHILLIPS P. SARNAK: Explicit expanders and the Ramanujan conjecture. 18. ACM Annual Symp. on Theory of Comput., 1986, pp. 240-246.
[4] N. ALON V. D. MILMAN: ${\lambda}_1$-isoperimetric inequalities for graphs and superconcentrators. J. Comb. Theory Ser. B 38 (1985), pp. 73-88. MR 0782626

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