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dr. Gert Sikkema
Kapteyn Institute Zernike Building, room 133,
P.O. Box 800 9700 AV Groningen
sikkema@astro.rug.nl
homepage: http://www.astro.rug.nl/~sikkema
31-50-3634548
Popular lectures on:
- Einstein's theory of Relativity
- Globular Clusters
- Active Galactic Nuclei
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