Tarımer, İ., and C. Ocak. “Performance Comparision of Internal and External Rotor Structured Wind Generators Mounted from Same Permanent Magnets on Same Geometry”. Elektronika Ir Elektrotechnika, vol. 92, no. 4, Apr. 2009, pp. 65-70, https://eejournal.ktu.lt/index.php/elt/article/view/10247.