Sachs, R. K. Propagation laws for null and type III gravitational waves. (English) Zbl 0087.42505 Z. Phys. 157, 462-477 (1960). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 6 Documents Keywords:relativity theory PDFBibTeX XMLCite \textit{R. K. Sachs}, Z. Phys. 157, 462--477 (1960; Zbl 0087.42505)