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]
|
16.
| Science Article (Ref.) Eclipse of the corona on 169 Mc/s, 1952 February 25
/ Coutrez, R. ; Koeckelenbergh, A. ; Pourbaix, E.
published in The Observatory, 73, pp. 239-241 (1953)
[SIDCimport-37]
|
17.
| Outreach Article Comment utiliser nos Ephemerides
/ Koeckelenbergh, A.
published in Ciel Terre, 109, pp. 4++ (1993)
[SIDCimport-36]
|
18.
| Outreach Article Ephemerides Astronomiques pour 1994
/ Cugnon, P. ; Koeckelenbergh, A. ; Evrard, G.
published in Ciel Terre, 109 (1993)
[SIDCimport-35]
|
19.
| Science Article Classification and Evolution of the Sunspot Groups
/ Koeckelenbergh, A. ; Van Boxmeer, H.
published in BAB, 10 (1994)
[SIDCimport-31]
|
20.
| Perio. SIDC News
/ Koeckelenbergh, A. ; Cugnon, P. ; et al
[SIDCimport-30]
|