Belevičius, Rimantas, and Saulius Valentinavičius. “Optimisation of Grillage-Type Foundations Pamatų Sijyno Optimizavimas”. Journal of Civil Engineering and Management, vol. 6, no. 4, Aug. 2000, pp. 255-61, https://doi.org/10.3846/13921525.2000.10531597.