Todorov, I.
().
Synthesis of structural schemes of linkage mechanisms for portal gantry crane jib system [Електронен ресурс]. - CD. // <I>ICTTE 2019<D> : International coference on ''Technics, technologies and education 2019'', 16-18 october 2019, Yambol, Bulgaria : Proc. - Yambol, 2019, p. 600-606, DOI: 10.15547/ictte.2019.08.088.