Vesa Halava, Tero Harju. Infinite Solutions of Marked Post Correspondence Problem. In Wilfried Brauer, Hartmut Ehrig, Juhani Karhumäki, Arto Salomaa, editors, Formal and Natural Computing - Essays Dedicated to Grzegorz Rozenberg [on occasion of his 60th birthday, March 14, 2002]. Volume 2300 of Lecture Notes in Computer Science, pages 57-68, Springer, 2002. [doi]
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