selected publications

• article

  • Toroidal grid minors and stretch in embedded graphs.  Journal of Combinatorial Theory. Series B.  140:323-371. 2020-01-01
  • Stars and bonds in crossing-critical graphs.  Journal of Graph Theory.  65:198-215. 2010-01-01
  • Stars and Bonds in Crossing-Critical Graphs.  Electronic Notes in Discrete Mathematics.  31:271-275. 2008-01-01
  • The crossing number of a projective graph is quadratic in the face - Width.  Electronic Journal of Combinatorics.  15:-. 2008-01-01
  • The crossing number of a projective graph is quadratic in the face-width.  Electronic Notes in Discrete Mathematics.  29:219-223. 2007-01-01

• conference paper

  • On hardness of the joint crossing number.  Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). 603-613. 2015-01-01
  • Approximating the crossing number of toroidal graphs.  Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). 148-159. 2007-01-01
  • On the crossing number of almost planar graphs.  Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). 162-173. 2007-01-01