ARRĐoković, JelenaNikolić, RužicaBujnak, Jan2023-12-252023-12-2520131877-705810.1016/j.proeng.2013.09.030http://www.sciencedirect.com/science/article/pii/S1877705813015373https://repozitorijum.tfbor.bg.ac.rs/handle/123456789/897enFundamental problems of modeling the fracture processes in concrete II: Size effect and selection of the solution approacharticle