[1] S. P. Avann:
Metric ternary distributive semi-lattices. Proc. Amer. Math. Soc. 12 (1961), 407-414.
MR 0125807 |
Zbl 0099.02201
[2] I. Chajda J. Niederle, B. Zelinka:
On existence conditions for compatible tolerance relations. Czech. Math. J. 26 (1976), 304-311.
MR 0401561
[3] I. Chajda, B. Zelinka:
Tolerance relation on lattices. Časopis pěst. mat. 99 (1974), 394-399.
MR 0360380 |
Zbl 0297.06001
[4] L. Nebesky:
Algebraic properties of trees. Acta Univ. Carol. Philologica-Monographia XXV, Praha 1969.
MR 0274210 |
Zbl 0214.23301
[6] J. Nieminen:
The congruence lattice of simple ternary algebras. manuscript, submitted to Časopis pěst. mat.
Zbl 0504.08002
[7] B. Zelinka:
Tolerances and congruences on tree algebras. Czech. Math. J. 25 (1975), 634-647.
MR 0387099 |
Zbl 0327.08002
[10] B. Zelinka:
Tolerance relations on semilattices. Comment. Math. Univ. Carolinae 16 (1975), 333-338.
MR 0369199 |
Zbl 0326.06004