TY  - BOOK
AU  - Kipenheuer, K. O., ed.
ED  - International Astronomical Union symposium
ED  - International Astronomical Union
TI  - Structure and development of solar active regions: proceedings of the International Astronomical Union symposium No.35 held in Budapest, Hungary, 4-8 September 1967
T2  - IAU symposium; no. 35
PY  - 1968///
CY  - Dordrecht
PB  - D. Reidel Publishing
KW  - Active sun
KW  - Astronomy and Astrophysics Thesaurus
KW  - Solar activity
ER  -