%0 Journal Article %T Public-Transportation-Assisted Data Delivery Scheme in Vehicular Delay Tolerant Networks %A Yong Feng %A Ke Liu %A Qian Qian %A Feng Wang %J International Journal of Distributed Sensor Networks %D 2012 %I Hindawi Publishing Corporation %R 10.1155/2012/451504 %U http://dx.doi.org/10.1155/2012/451504