1. The representation of a permutation as the product of a minimal number of transpositions;Denes;and its connection with the theory of graphs. A Magyar Tudomanyos Akademia Matemaikai Kutato Intezetenek Kozlemenyei,1959
2. Remark on a theorem of Denes;Eden,1962
3. Principes de Combinatoire;Berge,1968