Janas, M. and Sokół-Supel, J. 1999. On the strength reserve of concrete structures due to conditions of restrained flexure/Apie betoninų konstrukcių stiprumo rezervą suvaržyto lenkimo sąlygomis. Journal of Civil Engineering and Management. 5, 6 (Dec. 1999), 399-404. DOI:https://doi.org/10.3846/13921525.1999.10531495.