FOSSAT, Simon. Classic Doppler effect - An Extended Formula. London Journal of Physics, [S. l.], v. 2, n. 2, 2025. DOI: 10.69710/ljp.v2i2.15761. Disponível em: https://londonjphysics.org/index.php/ljp/article/view/15761. Acesso em: 1 jun. 2026.