Inhyeok Jang Wooyeol Choi Hyuk Lim A forwarding protocol with relay acknowledgement for vehicular ad-hoc networks. 553-554 2008 LCN http://dx.doi.org/10.1109/LCN.2008.4664233 conf/lcn/2008 db/conf/lcn/lcn2008.html#JangCL08