Ramonas, Č., V. Kepalas, and V. Adomavičius. 2010. “Research of the Grid-Tied Power System Consisting of Wind Turbine and Boiler GALAN”. Elektronika Ir Elektrotechnika 106 (10):27-32. https://eejournal.ktu.lt/index.php/elt/article/view/9112.