A separator theorem for nonplanar graphs, Journal of the American Mathematical Society, vol.3, issue.4, pp.801-808, 1990. ,
DOI : 10.1090/S0894-0347-1990-1065053-0
Graphs excluding a fixed minor have grids as large as treewidth, with combinatorial and algorithmic applications through bidimensionality, Proc. 16th Annual ACM-SIAM Symp. on Discrete Algorithms (SODA '05, 2005. ,
Lower bound of the hadwiger number of graphs by their average degree, Combinatorica, vol.7, issue.4, pp.307-316, 1984. ,
DOI : 10.1007/BF02579141
A Separator Theorem for Planar Graphs, SIAM Journal on Applied Mathematics, vol.36, issue.2, pp.177-189, 1979. ,
DOI : 10.1137/0136016
Homomorphieeigenschaften und mittlere Kantendichte von Graphen, Mathematische Annalen, vol.153, issue.215, pp.265-268, 1967. ,
DOI : 10.1007/BF01364272
URL : http://www.digizeitschriften.de/download/PPN235181684_0174/PPN235181684_0174___log64.pdf
Shallow excluded minors and improved graph decompositions, Proc. 5th Annual ACM-SIAM Symp. on Discrete Algorithms (SODA '94), pp.462-470, 1994. ,
Graph Minors .XIII. The Disjoint Paths Problem, Journal of Combinatorial Theory, Series B, vol.63, issue.1, pp.65-110, 1995. ,
DOI : 10.1006/jctb.1995.1006
URL : http://doi.org/10.1006/jctb.1999.1919
Graph separators, with applications, Frontiers of Computer Science. Kluwer, 2001. ,
An extremal function for contractions of graphs, Mathematical Proceedings of the Cambridge Philosophical Society, vol.38, issue.02, pp.261-265, 1984. ,
DOI : 10.1007/BF01350657