On the Graph for which there is a Tree as the Inverse Interchange Graph of a Local Graph. Juhani Nieminen — 1972 Manuscripta mathematica
On structural properties of normality relations on lattices Juhani Nieminen — 1977 Archivum Mathematicum
On normality relation and its generalization on lattices Juhani Nieminen — 1976 Commentationes Mathematicae Universitatis Carolinae
On the canonical subdirect decomposition of a join semilattice Juhani Nieminen — 1972 Commentationes Mathematicae Universitatis Carolinae
Tolerance relations on complete lattices Juhani Nieminen — 1977 Commentationes Mathematicae Universitatis Carolinae
Atomicity of tolerance lattices Ivan Chajda; Juhani Nieminen — 1980 Czechoslovak Mathematical Journal
Direct decomposability of tolerances on lattices, semilattices and quasilattices Ivan Chajda; Juhani Nieminen — 1982 Czechoslovak Mathematical Journal
Relations, coverings, hypergraphs and matroids K. Leutola; Juhani Nieminen — 1983 Czechoslovak Mathematical Journal
Tolerances and orderings on semilattices Ivan Chajda; Juhani Nieminen; Bohdan Zelinka — 1983 Archivum Mathematicum