Technical and economic analysis of structures of buildings in reinforced concrete with ribbed slab from 3 to 21 floors - Pillon, Fernando Rodrigues; Pinheiro, Roberto Vasconcelos; Vera, Aksou Vítor Kestring; Arroyo, Felipe Nascimento; Christoforo, André Luis; Panzera, Túlio Hallak; Lahr, Francisco Antonio Rocco (International Journal of Materials Engineering, 2018)