Conference Paper (Czech conference)
serial: Week of Doctoral Students 1999, p. 580-585 , Eds: Šafránková J.
publisher: MATFYZPRESS, (Praha 1999)
action: Annual Conference of Doctoral Students. WDS '99 /8./, (Praha, CZ, 22.06.1999-25.06.1999)
research: AV0Z1075907
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Cosati: 09K