1. G. Grätzer (1978) General Lattice Theory, Birkhäuser, Basle, Stuttgart.
2. J. Larmerová, and J. Rachunek (1988) Translations of distributive and modular ordered sets, Acta Univ. Palack. Olomuc. Fac. Rerum. Natur. Math. (to appear).
3. K. Leutola, and J. Nieminen (1983) Posets and generalized lattices, Algebra Universalis 16, 344–354.
4. J. Nieminen (1983) On distributive and modular χ-lattices, Yokohama Math. J. 31, 13–20.
5. J. Rachunek (1981) Translations des ensembles ordonnés, Math. Slovaca 31, 337–340.