Full Citation:
van ’t Hof, Pim, Kami'nski, Marcin, Paulusma, Dani"el, Szeider, Stefan, Thilikos, Dimitrios M.. On graph contractions and induced minors. Discr. Appl. Math., volume 160, number 6, pages 799-809, 2012.
Stefan Szeider is a Professor at the Algorithms and Complexity Group.