Freund, A. Time Structure of X-Ray Sources and Its Applications. SPIE Digital Library.
Цитирование в стиле Чикаго (17-е изд.)Freund, Andreas. Time Structure of X-Ray Sources and Its Applications. SPIE Digital Library.
Цитирование MLA (9-е изд.)Freund, Andreas. Time Structure of X-Ray Sources and Its Applications. SPIE Digital Library.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.