BRAŠEŇ, Matej. Hotel "Olympic Park Berlin", Berlin, Nemecko. Bratislava : STU v Bratislave FA, 2010. Available on Internet: <http://is.stuba.sk/zp/portal_zp.pl?podrobnosti=63452 https://opac.crzp.sk/?fn=detailBiblioForm&sid=74DC020A23E61A164071EE04B91F> A*