Regular articles

• On representing RE languages by one-sided internal contextual languages

  Andrzej Ehrenfeucht

  217-233

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• Growth functions and length sets of replicating systems

  Valeria Mihalache, Arto Salomaa

  235-247

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• The reflexive domain of CPO's ideals

  Gabriel Ciobanu

  249-260

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• On domain and range tree languages of superlinear deterministic top-down tree transformations

  Gábor Dányi

  261-277

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• On binary minimal clones

  L. Lévai, Péter Pál Pálfy

  279-294

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• On a normal form of Petri nets

  Ferucio Laurenţiu Țiplea, Masashi Katsura, Masami Ito

  295-308

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• A note on connection between PNS and set covering problems

  Zoltán Blázsik, Balázs Imreh

  309-312

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• Steiner minimum trees for equidistant points on two sides of an angle

  Rainer E. Burkard, Tibor Dudás

  313-324

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