ČOJANOVIĆ, M. Derivation of general Doppler effect equations (II) Milos Cojanovic. JOURNAL OF ADVANCES IN PHYSICS, [S. l.], v. 19, p. 13–22, 2021. DOI: 10.24297/jap.v19i.8947. Disponível em: https://rajpub.com/index.php/jap/article/view/8947. Acesso em: 21 oct. 2021.