MartÃnez Raya, Antonio2024-05-202024-05-202021https://hdl.handle.net/20.500.14468/18348enAtribución-NoComercial-SinDerivadas 4.0 Internacionalinfo:eu-repo/semantics/openAccessThe European Single Air Transport Market: An Empirical Approach on the Efficiency and Sustainability of Public Service Obligations in the Spanish Domestic Routestesis doctoral