PORUBANOVÁ, Klaudia - RICHNÁK, Patrik. Usability of Intangible Assets in the Terms of Manufacturing Companies. - Registrovaný: Web of Science. In AD ALTA : journal of interdisciplinary research. - Hradec Králové : MAGNANIMITAS, 2017. ISSN 2464-6733, 2017, vol. 7, no. 2, pp. 177-180 online. VEGA 1/0305/15.