S. Horváth, M. Ito:
Decidable and Undecidable Problems of Primitive Words, Regular and Context-Free Languages
/jucs_5_9/decidable_and_undecidable_problems

page 532 - 541
Vol.5 / Issue 9

M. Ito:
Shuffle Decomposition of Regular Languages
/jucs_8_2/shuffle_decomposition_of_regular

page 257 - 259
Vol.8 / Issue 2

M. Ito, J. Dassow, R. Stiebe:
Some Remarks on Codes Defined by Petri Nets
/jucs_8_2/some_remarks_on_codes

page 260 - 269
Vol.8 / Issue 2