@misc {IOPORT.70937038,
    author       = {Heggernes, Pinar and Van 't Hof, Pim and Paulusma, Dani\"el},
    title        = {Computing role assignments of proper interval graphs in polynomial time},
    howpublished = {IWOCA, 167-180 (2010).},
    year         = {2010},
    doi          = {10.1007/978-3-642-19222-7_18},
    identifier   = {70937038},
}