Azubalis, M., V. Azubalis, and D. Slusnys. “Estimation of the Feasible Wind Power in a Small Power System”. Elektronika Ir Elektrotechnika, vol. 107, no. 1, Jan. 2011, pp. 79-82, https://eejournal.ktu.lt/index.php/elt/article/view/9091.