R. C. Bose and S. S. Shrikhande: On the construction of sets of mutually orthogonal latin squares and the falsity of a conjecture of Euler. In: Trans. Amer. Math. Soc. Band95, 1960, S.191–209, doi:10.1090/S0002-9947-1960-0111695-3 (englisch).
R. C. Bose, S. S. Shrikhande, E. T. Parker: Further results on the construction of mutually orthogonal Latin squares and the falsity of Euler's conjecture. In: Canadian Journal of Mathematics. Band12, 1960, S.189–, doi:10.4153/CJM-1960-016-5 (englisch, PDF).
jstor.org
Shrikhande, S. S.: The Uniqueness of the Association Scheme. In: Ann. Math. Stat. Band30, 1959, S.781–798, JSTOR:2237417 (englisch).
math.ca
cms.math.ca
R. C. Bose, S. S. Shrikhande, E. T. Parker: Further results on the construction of mutually orthogonal Latin squares and the falsity of Euler's conjecture. In: Canadian Journal of Mathematics. Band12, 1960, S.189–, doi:10.4153/CJM-1960-016-5 (englisch, PDF).
R. C. Bose, S. S. Shrikhande: On the falsity of Euler´s conjecture about the non-existence of two orthogonal latin squares of order 4t+2. In: Proc. Nat. Acad. Sci. USA. Band45, 1959, S.734–737, PMID 16590435, PMC 222625 (freier Volltext) – (englisch).