ARRĐoković, JelenaNikolić, RužicaBujnak, Jan2023-12-252023-12-2520161505-8425http://kib-pan.katowice.po.opole.pl/roczniki/2016/04.pdfhttps://repozitorijum.tfbor.bg.ac.rs/handle/123456789/189enBuckling of variable cross-sections columns in the braced and sway plane framesarticle