Reconstruction of the protective barrier on the highways in the republic of North Macedonia pursuant to the MKS en1317 standardRiste Ristov, Slobodan Ognjenovic, Ivana Nedevska and Zlatko ZafirovskiE3S Web Conf., 138 (2019) 01004DOI: https://doi.org/10.1051/e3sconf/201913801004