Daniela Chudá Ján Chlpek Andrej Kumor The impact of text pre-processing to determine the similarity in students assignments. 417-422 2011 CompSysTech https://doi.org/10.1145/2023607.2023677 conf/compsystech/2011 db/conf/compsystech/compsystech2011.html#ChudaCK11