Media type: E-Article Title: Minimal obstructions to 2-polar cographs Contributor: Hell, Pavol; Hernández-Cruz, César; Sales, Cláudia Linhares Published: Elsevier BV, 2019 Published in: Discrete Applied Mathematics, 261 (2019), Seite 219-228 Language: English DOI: 10.1016/j.dam.2018.01.007 ISSN: 0166-218X Origination: Footnote: Access State: Open Access