GUPTA, V. R.; GUPTA, N. Characteristics of a Compact Circularly Polarized Microstrip Antenna. Elektronika ir Elektrotechnika, [S. l.], v. 52, n. 3, 2004. DOI: 10.5755/j02.eie.10924. Disponível em: https://eejournal.ktu.lt/index.php/elt/article/view/10924.. Acesso em: 25 may. 2026.