6.
| Science Article (Ref.) From the Wolf number to the International Sunspot index: 25 years of SIDC
/ Clette, F. ; Berghmans, D. ; Vanlommel, P. ; Van der Linden, R.A.M. ; et al
published in Advances in Space Research, 40, pp. 919--928 (2007)
10.1016/j.asr.2006.12.045
[SIDCimport-255]
|
7.
| Outreach Article Les éclipses de Soleil: de la théorie à la pratique: Editorial
/ Clette, F. ; Meeus, J. ; Dommanget, J. ; Pasachoff, J.M. ; et al
published in Ciel Terre, 115, pp. 34 (1999)
[SIDCimport-152]
|
8.
| Outreach Article Ephemerides Astronomiques pour 1999
/ Cugnon, P. ; Koeckelenbergh, A. ; Evrard, G.
published in Ciel Terre, 113, pp. 1++ (1998)
[SIDCimport-112]
|
9.
| Science Article Historical Session: the Contribution of Amateurs to Astronomy, Yesterday and Today
/ Koeckelenbergh, A.
published in proceeding, pp. 62++ (1988)
[SIDCimport-44]
|
10.
| Science Article (Ref.) Observations of the solar corona in polarized white light during the total solar eclipse of February 16, 1980 Preliminary results
/ Clette, F. ; Cugnon, P. ; Koeckelenbergh, A.
published in Solar Physics, 98, pp. 163--171 (1985)
10.1007/BF00177206
[SIDCimport-43]
|
11.
| Outreach Article Solar active phenomena
/ Koeckelenbergh, A.
published in Ciel Terre, 97, pp. 125-136 (1981)
[SIDCimport-42]
|
12.
| Outreach Article Sunspot Index Data Center
/ Koeckelenbergh, A.
published in Sky and Telescope, 61, pp. 216++ (1981)
[SIDCimport-41]
|
13.
| Outreach Article A statistical study of associations between the magnetic fields of groups of sunspots and the morphology of solar flares and bursts on the decimetric wave range
/ Koeckelenbergh, A.
published in Ciel Terre, 91, pp. 1-15 (1975)
[SIDCimport-40]
|
14.
| Science Article (Ref.) Solar Activity Observations at Uccle and Humain Stations
/ Koeckelenbergh, A.
published in Solar Physics, 16, pp. 497++ (1971)
[SIDCimport-39]
|
15.
| Science Article Quelques Relations Entre Sursauts Radioelectriques Solaires Sur Ondes Decimetriques Et Caracteres Morphologiques Des eruptions Chromospheriques Associees
/ Koeckelenbergh, A.
published in proceeding, pp. 598++ (1968)
[SIDCimport-38]
|