Mobility-as-a-Service (MaaS) and sustainable urban mobility in the development of the European museum business: a case study of SpainVictoria Tsypko, Nadiia Shcherbakova and Liudmyla RiaboshtanE3S Web of Conf., 508 (2024) 08001DOI: https://doi.org/10.1051/e3sconf/202450808001