RT Journal Article SR Electronic A1 Lang, Štěpán T1 JF Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis YR 2017 VO 65 IS 2 SP 441 OP 446 DO 10.11118/actaun201765020441 UL https://acta.mendelu.cz/artkey/acu-201702-0007.php AB