TEKIN, S. A.; ALÇI, M. Design and Applications of Electronically Tunable Floating Resistor Using Differential Amplifier. Elektronika ir Elektrotechnika, [S. l.], v. 19, n. 4, p. 41-46, 2013. DOI: 10.5755/j01.eee.19.4.1310. Disponível em: https://eejournal.ktu.lt/index.php/elt/article/view/1310. Acesso em: 30 apr. 2024.