• Probe signals with nonrectangular envelopeMüürsepp, Ivo; Berdnikova, Julia; Ruuben, Toomas; Madar, UrveElektronika ir elektrotechnika = Electronics and Electrical Engineering2010 / 5, p. 99-102 : ill https://eejournal.ktu.lt/index.php/elt/article/view/9443