1. A. A. Albert, Finite division algebras and finite planes. Proc. Symposia Appl. Math.10, 53–70 (1960).
2. F. Bartolozzi, II gruppo projettivo di un piano sopra un Quasicorpo distributive finito. Atti Accad. Palermo, IV. Ser.9, 115–125 (1958/1959).
3. R. H. Bruck, Contributions to the theory of Loops. Trans. Amer. Math. Soc.60, 245–354 (1946).
4. M. V. D. Burmester, On the commutative non associative division algebras of even order of L. E. Dickson. Rend. Mat. e Appl., V.Ser21 143–166 (1962).
5. G. Panella, Le collineazioni nei piani di M. Hall. Riv. Mat. Parma, II. Ser.1 171–184 (1960).