Novák, Norbert2021-06-292021-06-292019-12-12International Journal of Engineering and Management Sciences, Évf. 4 szám 4 (2019) , 381-388https://hdl.handle.net/2437/318798-application/pdffolyóiratcikkOpen Accessby the authorshttps://doi.org/10.21791/IJEMS.2019.4.43.International Journal of Engineering and Management Sciences442498-700X