PETERA, Petr et al. Sustainability Information in Annual Reports of Companies Domiciled in the Czech Republic and the Slovak Republic. - Registrovaný: Scopus, Registrovaný: Web of Science. In Inzinerine Ekonomika-Engineering Economics. - Kaunas : Kaunas University of Technology. ISSN 1392-2785, 2019, vol. 30, no. 4, pp.483-495.