RT Book T1 Wege zur Relativitätstheorie T2 Kosmos / Kosmos-Bändchen JF Kosmos / Kosmos-Bändchen A1 Lämmel, Rudolf 1879-1962 LA German PP Stuttgart PB Franckh YR 1921 UL https://ixtheo.de/Record/071036466 CN 530.11 K1 Relativity (Physics)