Hagring, O. (1998). Vehicle-vehicle interactions at roundabouts and their implications for the entry capacity: A methodological study with applications to two-lane roundabouts. Lund Institute of Technology.
Čikaški stil citiranja (17. izdanje)Hagring, Ola. Vehicle-vehicle Interactions at Roundabouts and Their Implications for the Entry Capacity: A Methodological Study with Applications to Two-lane Roundabouts. Lund, Sweden: Lund Institute of Technology, 1998.
MLA način citiranja (8. izdanje)Hagring, Ola. Vehicle-vehicle Interactions at Roundabouts and Their Implications for the Entry Capacity: A Methodological Study with Applications to Two-lane Roundabouts. Lund Institute of Technology, 1998.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.