[1] Birkhoff G.: Lattice Theory. AMS, N.Y. 1940. MR 0001959 | Zbl 0063.00402

[2] Fried E.: Tournaments and non-associative lattices. Annales Univ. Sci. Budapest, Sectio Math., 13 (1970), 151-164. MR 0321837

[3] Fried E.: Weakly associative lattices with join and meet of several elements. Annales Univ. Sci. Budapest, Sectio Math., 16 (1973), 93-98. MR 0376458

[4J Fried E., Grätzer G.: Some examples of weakly associative lattices. Colloquium Math. XXVII (1973), 215-221. MR 0327590

[5] Chajda I.: A construction of toleгances on modular lattices. Časop. pro pěst. matem. 2, 1976, to appear. MR 0450155

[6] Rachůnek J.: O-Idéaux des ensembles ordonés. Acta Univ. Palackianae Olomucensis, fac. rer. natuг., tom 45 (1974), p. 77-81.