Total Colourings of Graphs Lecture Notes in Mathematics, nr. 1623 Autor Hian Poh Yap 19 feb 1996 Paperback Preț: 274.54 lei 6-8 săpt.
Some Topics in Graph Theory London Mathematical Society Lecture Note Series, nr. 108 Autor Hian Poh Yap 16 iul 1986 Paperback Preț: 434.32 lei 6-8 săpt.
