LUKÁČ, Michal; MIHÁLIK, Jaroslav. Data Envelopment Analysis – A Key to the Museums’ ‘Secret Chamber’ of Marketing?. Communication Today, [S. l.], v. 9, n. 2, p. 106–117, 2018. DOI: 10.0000/46n04a55. Disponível em: https://communicationtoday.fmk.ucm.sk/index.php/ct/article/view/218.. Acesso em: 19 apr. 2026.