@Article{         10.5555/310994.310996,
  Author        = "Petre, Ion",
  Address       = "DEU",
  date-added    = "2022-10-28 08:19:50 +0200",
  date-modified = "2022-10-28 08:19:50 +0200",
  ISSN          = "1430-189X",
  issue_date    = "Jan. 1999",
  Journal       = "J. Autom. Lang. Comb.",
  Keywords      = "Parikh's theorem, Mezei's theorem, multiplicities, formal power series",
  Month         = "jan",
  Number        = "1",
  numpages      = "14",
  Pages         = "17--30",
  Publisher     = "Otto-von-Guericke-Universitat",
  Title         = "Parkh's Theorem Does Not Hold for Multiplicities",
  Volume        = "4",
  Year          = "1999"
}

@Article{ 10.5555/310994.310996, Author = "Petre, Ion", Address = "DEU", date-added = "2022-10-28 08:19:50 +0200", date-modified = "2022-10-28 08:19:50 +0200", ISSN = "1430-189X", issue_date = "Jan. 1999", Journal = "J. Autom. Lang. Comb.", Keywords = "Parikh's theorem, Mezei's theorem, multiplicities, formal power series", Month = "jan", Number = "1", numpages = "14", Pages = "17--30", Publisher = "Otto-von-Guericke-Universitat", Title = "Parkh's Theorem Does Not Hold for Multiplicities", Volume = "4", Year = "1999" }