References
G. Grätzer,General Lattice Theory, Academic Press, New York, N. Y., Birkhäuser Verlag, Basel, Akademie Verlag, Berlin, 1978.
G. Grätzer and E. T. Schmidt,The Strong Independence Theorem for automorphism groups and congruence lattices of finite lattices. Submitted toBeiträge zur Algebra und Geometrie.
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The research of the first author was supported by the NSERC of Canada.
The research of the second author was supported by the Hungarian National Foundation for Scientific Research, under Grant No. 1903.
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Grätzer, G., Schmidt, E.T. A lattice construction and congruence-preserving extensions. Acta Math Hung 66, 275–288 (1995). https://doi.org/10.1007/BF01876045
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DOI: https://doi.org/10.1007/BF01876045