"Stromy v komutativn\u00EDch Nil-pologrup\u00E1ch indexu 2"@cs . . . . . "48" . . "11320" . . . "Stromy v komutativn\u00EDch Nil-pologrup\u00E1ch indexu 2"@cs . . "1" . "Fla\u0161ka, V\u00E1clav" . "Kepka, Tom\u00E1\u0161" . . . "Trees in Commutative Nil-Semigroups of Index Two" . "Trees in Commutative Nil-Semigroups of Index Two" . . "Stromy v komutativn\u00EDch Nil-pologrup\u00E1ch indexu 2"@cs . "RIV/00216208:11320/07:00004912!RIV08-MSM-11320___" . "Acta Universitatis Carolinae : Mathematica et Physica" . "2"^^ . "0001-7140" . . . . . "455697" . "4"^^ . "81;101" . "Trees in Commutative Nil-Semigroups of Index Two"@en . "Trees; Commutative; Nil-Semigroups; Index; Two"@en . "RIV/00216208:11320/07:00004912" . . . "Trees in Commutative Nil-Semigroups of Index Two"@en . "P(GP406/05/P561), Z(MSM0021620839)" . . . "Trees in Commutative Nil-Semigroups of Index Two"@en . . "CZ - \u010Cesk\u00E1 republika" . "21"^^ . "[667CAD05BDCB]" . "Trees in Commutative Nil-Semigroups of Index Two" .