Saeed, Nausheen, et al. “In VANET Single Network Types i.E. WAVE Is Not Sufficient to Provide QoS. UMTS in Integration With WAVE Can Provide Efficient Network Connectivity – A Survey”. International Journal of Basic and Applied Sciences, vol. 2, no. 4, Sept. 2013, pp. 275-80, https://doi.org/10.14419/ijbas.v2i4.1184.