Mikučionis, Š., and V. Urbanavičius. “Investigation of Normal Modes in Microstrip Multiconductor Line Using the MoM”. Elektronika Ir Elektrotechnika, vol. 100, no. 4, Mar. 2010, pp. 91-94, https://eejournal.ktu.lt/index.php/elt/article/view/9886.