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Publikováno v:
Journal of Combinatorial Theory - Series B. Nov2008, Vol. 98 Issue 6, p1119-1164. 46p.
Autor:
Chudnovsky, Maria1 mchudnov@columbia.edu, Seymour, Paul2 pds@math.Princeton.edu
Publikováno v:
Journal of Combinatorial Theory - Series B. Sep2008, Vol. 98 Issue 5, p839-938. 100p.
Autor:
Chudnovsky, Maria1 mchudnov@columbia.edu, Seymour, Paul2 pds@math.Princeton.edu
Publikováno v:
Journal of Combinatorial Theory - Series B. Mar2008, Vol. 98 Issue 2, p249-290. 42p.