[1] ARMBRUST M.: 
On a set-theoretic characterization of congruence lattices. Z. math. Log. Grundl. Math. 16, 1970, 417-419. 
MR 0270998[3] GRÄTZER G., SCHMIDT E. T.: 
On ideal theory of lattices. Acta Sci. Math. Szeged. 19, 1958. 82-92. 
MR 0095795[5] PIERCE R. S.: 
Introduction to the theory of abstract algebras. 1. ed. New York 1968. 
MR 0227070[6] QUACKENBUSH R., WOLK B.: 
Strong representation of congruence lattices. Algebra universalis 1, 1971, 165-166. 
MR 0295980 | 
Zbl 0231.06006[7] WHITMAN P. M.: 
Lattices, equivalence relations and subgroups. Bull. Amer. math. Soc. 52, 1946, 507-522. 
MR 0016750 | 
Zbl 0060.06505