1. The role of bus transportation in modal split, (in Hungarian);Békefi Z.;Camion Truck&Bus,2009
2. Question of vehicle acquisition in road public transport — in Hungarian, (in Hungarian);Polgár J.;Városi Közlekedés,2009
3. Environmental impact estimation of renewable gaseous fuels consumed by road vehicles;Kovács V. B.;Pollack Periodica,2009
4. Layout effect of roadway on road vehicle speeds;Berta T.;Pollack Periodica,2009
5. The effects of road public transport companies’ service level on the state budget, (in Hungarian);Heinczinger M.;Közlekedéstudományi Szemle,2009