Yangyozov, Anastas Todorov, Damjanka Stojanova Dimitrova, и Lazar Georgiev Panayotov. 2018. „Modeling and Performance Calculation of a Horizontal Axis Wind and Hydrokinetic Turbine: Numerical Study“. ГОДИШНИК НА ТЕХНИЧЕСКИ УНИВЕРСИТЕТ - ВАРНА 2 (2):70-79. https://doi.org/10.29114/ajtuv.vol2.iss2.95.