HRUSZOWIEC, Mariusz; NOWAK, Kacper; SZLACHETKO, Bogusław; GRZELCZAK, Michał P.; CZARCZYŃSKI, Wojciech; PLIŃSKI, Edward F.; WIĘCKOWSKI, Tadeusz. The Microwave Sources for EPR Spectroscopy. Journal of Telecommunications and Information Technology, [S. l.], v. 68, n. 2, p. 18–25, 2017. DOI: 10.26636/jtit.2017.107616. Disponível em: https://jtit.pl/jtit/article/view/659. Acesso em: 16 apr. 2026.