APCOM 2018 : 24th International conference on applied physics of condensed matter. Štrbské Pleso, Slovak Republic. June 20-22, 2018 - Sitek, Jozef, 1944-; Vajda, Ján, 1950-; Jamnický, Igor; Harmatha, Ladislav, 1948-; Cirák, Július, 1953- (AIP Conference Proceedings, 2018)