Brendan D. McKay, Stanislaw P. Radziszowski. A new upper bound on the Ramsey number R(5, 5). Australasian J. Combinatorics, 5:13-20, 1992. [doi]
@article{McKayR92, title = {A new upper bound on the Ramsey number R(5, 5)}, author = {Brendan D. McKay and Stanislaw P. Radziszowski}, year = {1992}, url = {http://ajc.maths.uq.edu.au/pdf/5/ocr-ajc-v5-p13.pdf}, researchr = {https://researchr.org/publication/McKayR92}, cites = {0}, citedby = {0}, journal = {Australasian J. Combinatorics}, volume = {5}, pages = {13-20}, }