RT Journal Article SR Electronic A1 MACUROVÁ, Anna A1 VASILKO, Karol T1 HYPOTHESIS ABOUT THE CUT SURFACE JF Trends in education YR 2008 VO 1 IS 1 SP 578 OP 581 UL https://tvv-journal.upol.cz/en/artkey/tvv-200801-0135.php AB In the paper is presented the hypothesis with testing experimental process.