Real-time computations of two-way multihead finite automata. - Ladislav Janiga (FCT, 1979)

Another Hierarchy Defined by Multihead Finite Automata. - Ladislav Janiga (MFCS, 1981)

On Languages Generated by Semigroups. - Ladislav Janiga; Václav Koubek (FCT, 1983)

A Note on Finding Minimum Cuts in Directed Planar Networks by Parallel Computations. - Ladislav Janiga; Václav Koubek (Inf. Process. Lett., 1985)

Variable Multihead Machines. - Juraj Hromkovic; Ladislav Janiga; Václav Koubek (J. Inf. Process. Cybern., 1991)

Minimum cut in directed planar networks. - Ladislav Janiga; Václav Koubek (Kybernetika, 1992)