@proceedings{ ogr:kob:20:poleval, editor = "Ogrodniczuk, Maciej and Kobyliński, Łukasz", publisher = "Institute of Computer Science, Polish Academy of Sciences", pdf = "http://poleval.pl/files/poleval2020.pdf", title = "Proceedings of the {P}ol{E}val 2020 {W}orkshop", address = "Warsaw", year = "2020" }