RT Article T1 Reviews JF Indo-Iranian journal VO 8 IS 3 SP 226 OP 247 A1 Hacker, Paul A1 Ruegg, D. Seyfort A1 Labordus, S. A2 Ruegg, D. Seyfort A2 Labordus, S. A2 Kuiper, F. B. J. A2 Biardeau, M. A2 de Jong, J. W. LA English YR 1965 UL https://ixtheo.de/Record/1562097539 DO 10.1163/000000065791615848