@proceedings{ ogr:kob:19:poleval, editor = "Ogrodniczuk, Maciej and Kobyliński, Łukasz", url = "http://poleval.pl/files/poleval2019.pdf", publisher = "Institute of Computer Science, Polish Academy of Sciences", address = "Warsaw, Poland", title = "Proceedings of the {P}ol{E}val 2019 {W}orkshop", year = "2019" }