International geophysical year, world data center A solar activity high altitude observatory: intermediate reports of surges and active prominence regions April - June 1958
International geophysical year, world data center A solar activity high altitude observatory: intermediate reports of surges and active prominence regions April - June 1958
- Washington : National Academy of Science , 1959
- [n.p.] : 28 cm.
Solar activity
Solar rediation
Statistical services
IGY (08) 10/5
Solar activity
Solar rediation
Statistical services
IGY (08) 10/5