TY  - BOOK
AU  - INTERNATIONAL ASTRONOMICAL UNION COLLOQUIUM(125th
TI  - "Radio recombination lines - 25 years of investigation. Proceedings of the 125th IAUC, Pushchino, USSR, Sept 11-16, 1989"
SN  - 0-7923-0804-2
CY  - Dordrecht
ER  -