Geodesic
Varieties Of Steiner Loops and Steiner Quasigroups
Canadian journal of mathematics, Tome 28 (1976) no. 6, pp. 1187-1198

Voir la notice de l'article provenant de la source Cambridge University Press

A Steiner Triple System (STS) is a pair (P, B) where P is a set of points and B is a set of 3-elenient subsets of P called blocks (or triples) such that for distinct p, q ∈ P there is a unique block b ∈ B with {p, q) ⊂ b. There are two well-known methods for turning Steiner Triple Systems into algebras; both methods are due to R. H. Bruck [1]. Each method gives rise to a variety of algebras; in this paper we will study these varieties. 
Quackenbush, Robert W. Varieties Of Steiner Loops and Steiner Quasigroups. Canadian journal of mathematics, Tome 28 (1976) no. 6, pp. 1187-1198. doi: 10.4153/CJM-1976-118-1
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