Gintalas, Vilimas, Donatas Cygas, Daiva Zilioniene, and Virgaudas Puodziukas. “Longitudinal Profile of the Objects Included in the Gravel Roads Paving Programme of Lithuania”. The Baltic Journal of Road and Bridge Engineering 2, no. 2 (June 27, 2007): 53–59. Accessed May 2, 2024. https://bjrbe-journals.rtu.lv/bjrbe/article/view/1822-427X.2007.2.53%E2%80%9359.