KOVAL, P. M.; STOYANOVICH, S. V. RESEARCHES OF CONCRETE FRACTURE STRENGTH OF THE BEAMS BY TYPE "3 BET-90" AND "3 BET-120". Science and Transport Progress , [S. l.], n. 33, p. 118–121, 2010. DOI: 10.15802/stp2010/13185. Disponível em: https://stp.ust.edu.ua/article/view/13185. Acesso em: 5 may. 2024.