Topaloğlu, İ., C. Ocak, and İ. Tarımer. “A Case Study of Getting Performance Characteristics of a Salient Pole Synchronous Hydrogenerators”. Elektronika Ir Elektrotechnika, vol. 97, no. 1, Jan. 2010, pp. 57-61, https://eejournal.ktu.lt/index.php/elt/article/view/9946.