Kaklauskas, Gintaris, and Mikael Hallgren. “Curvature Analysis of High Strength Concrete Beams Stipraus Betono gelžbetoninų Sijų Kreivių Analizė”. Journal of Civil Engineering and Management, vol. 5, no. 6, Dec. 1999, pp. 357-63, https://doi.org/10.3846/13921525.1999.10531490.