Geodesic
The Ramsey number r(C₇,C₇,C₇)
Discussiones Mathematicae. Graph Theory, Tome 23 (2003) no. 1, pp. 141-158

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Bondy and Erdős [2] have conjectured that the Ramsey number for three cycles Cₖ of odd length has value r(Cₖ,Cₖ,Cₖ) = 4k-3. We give a proof that r(C₇,C₇,C₇) = 25 without using any computer support.
Keywords: Ramsey numbers, extremal graphs 
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Faudree, Ralph; Schelten, Annette; Schiermeyer, Ingo. The Ramsey number r(C₇,C₇,C₇). Discussiones Mathematicae. Graph Theory, Tome 23 (2003) no. 1, pp. 141-158. http://geodesic.mathdoc.fr/item/DMGT_2003_23_1_a9/