ballistic theory, Ritz, Salat, Bernheimer, variable stars, Algol, Bailey
Memorie della Società Astronomica Italiana
Translated to English with Google Translate by Thomas E. Miles
Insisting on the importance of such an agreement is superfluous. It's a new one group of facts that comes in a direct and natural way to speak in favor of application of the ballistic principle to light; application that looks like easy and natural on the ground of quantum theories.