An Ontology Based Document Management. - Ján Hreno; Robert Kende (SAAKM@ECAI, 2002)

Ontologies in HYDRA - Middleware for Ambient Intelligent Devices. - Peter Kostelnik; Martin Sarnovsky; Ján Hreno (AMIF, 2009)

Integration of Government Services using Semantic Technologies. - Ján Hreno; Peter Bednár; Karol Furdík; Tomas Sabol (J. Theor. Appl. Electron. Commer. Res., 2011)

PLUGGY: A pluggable Social Platform for Cultural Heritage Awareness and Participation. - Nikos Frangakis; Luis Molina-Tanco; Peter Smatana; Ján Hreno; Lorenzo Picinali; Angelos Amditis; Veranika Lim (CIRA@EuroMed, 2018)

Parallel Data and Information Visualization. - Ján Hreno; Gabriel Lukac; Michaela Smatanova (SACI, 2022)

New Ways of Exploring Connections Between Cultural Heritage Objects. - Peter Smatana; Tomas Sabol; Ján Hreno; Peter Bednár; Michaela Smatanova (SACI, 2022)