RT Journal Article SR Electronic A1 Fořt, Bohumil T1 JF Bohemica Olomucensia YR 2022 VO 14 IS 1 SP 42 OP 51 DO 10.5507/bo.2022.003 UL https://bohemica.upol.cz/cz/artkey/boh-202201-0003.php AB