@techreport{biblio-2301247895667174539,
  author    = {Marie Mikulová and Eduard Bejček and Jiří Mírovský and Anna Nedoluzhko and Jarmila Panevová and Lucie Poláková and Pavel Straňák and Magda Ševčíková and Zdeněk Žabokrtský},
  year      = 2013,
  title     = { From PDT 2.0 to PDT 3.0 (Modifications and Complements)},
  publisher = {ÚFAL MFF UK},
}