• Acoustic spectrum analysis of genuine and counterfeit euro coinsGavrijaševa, Alina; Märtens, Olev; Land, RaulElektronika ir elektrotechnika = Electronics and electrical engineering2015 / p. 54-57 : ill https://doi.org/10.5755/j01.eee.21.3.10384 https://www.scopus.com/sourceid/19900193212 https://www.scopus.com/record/display.uri?eid=2-s2.0-84932120371&origin=inward&txGid=fb35c67f81dcea9cb82d23f55a4ae5e7 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=ELEKTRON%20ELEKTROTECH&year=2015 https://www.webofscience.com/wos/woscc/full-record/WOS:000356608000010