| 2000 | SOC | First
Results of 1999 Total Eclipse Observations International Conference, 11-15 September 2000, Varna, Bulgaria |
| 2001 | LOC | Solar
Researches in the South-Eastern European Countries: Present and
Perspectives SREAC Meeting, 24 – 28 April 2001, Bucharest, Romania |
| 2006 | SOC, LOC | Fifty
Years of Romanian Astrophysics International Conference, 26-30 September 2006, Bucharest, Romania |
| 2007 | SOC, LOC | Flows,
Boundaries, Interactions International Workshop, 3-5 May 2007, Sinaia, Romania |
| 2007 | SOC, LOC | Heliosphere
and Galaxy Young Scientists International School, 3-5 May 2007, Sinaia, Romania |
| 2008 | SOC, LOC | Exploring
the Solar System and the Universe (Bucharest Observatory Centenary) International Conference, 8-12 April 2008, Bucharest, Romania |
| 2009 | SOC, LOC | Recent
Insights into our Universe International Conference, 28-29 October 2009, Bucharest, Romania |