SIMEONOVA, T.; VELKOV, A. Application of wood structures for the analysis of the electrical chain in a sinusoidal and periodical non-sinusoidal mode of work. Yearbook Telecommunications, [S. l.], v. 5, p. 93–107, 2018. Disponível em: https://ojs.nbu.bg/index.php/YT/article/view/136. Acesso em: 5 may. 2024.