1. Antoniou, A., Danezis E., Lyratzi, E.,Popović, L. Č., Dimitrijević, M. S. and Stathopoulos, D.: “Studding the origin of SACs and DACs in the spectra of hot emission stars”, Joint European and National Astronomical Meeting (JENAM 2010), September 2010, Lisbon, Portugal.
2. Lyratzi, E.,Danezis E., Popović, L. Č., Dimitrijević, M. S. and Antoniou, A.,: “DACs and SACs in the spectra of the quasars PG 0946+301 and PG 1254+047” Joint European and National Astronomical Meeting (JENAM 2010), September 2010, Lisbon, Portugal.
3. Danezis, E., Lyratzi, E., Popović, L. Č., Dimitrijević, M. S. & Antoniou, A.: “DACs/SACs phenomena in astrophysical spectra”, Joint European and National Astronomical Meeting (JENAM 2008), Sept. 8 to 12, 2008, Vienna, Austria.
4. Lyratzi, E., Danezis, E., Popović, L. Č., Dimitrijević, M. S. & Antoniou, A.: “An analysis of C IV and Si IV lines in the spectra of the quasars PG 0946+301 and PG 1254+047”, Joint European and National Astronomical Meeting (JENAM 2008), Sept. 8 to 12, 2008, Vienna, Austria.
5. Danezis, E., Lyratzi, E., Nikolaidis, D., Antoniou, A., Popović, L. Č. & Dimitrijević, M. S.: “The SACs Broadening” 23^rd Summer School and International Symposium on the Physics of Ionized Gases (SPIG 2006), 28^th August – 1^st September 2006, Kopaonik, Serbia.
6. Lyratzi, E., Danezis, E., Nikolaidis, D., Antoniou, A., Popović, L. Č., Dimitrijević, M. S. & Theodossiou, E.: “The Photospheric And The Respective Si IV Regions’ Rotational Velocities In 27 Be Stars”, 23^rd Summer School and International Symposium on the Physics of Ionized Gases, (SPIG 2006), 28^th August – 1^st September 2006, Kopaonik, Serbia.
7. Nikolaidis, D., Danezis, E., Lyratzi, E., Popović, L. Č., Antoniou, A. Dimitrijević, M. S. & Theodossiou, E.: “A Study Of DACs And SACs Regions In The Atmospheres Of Hot Emissions Stars”, 23^rd Summer School and International Symposium on the Physics of Ionized Gases, (SPIG 2006), 28^th August – 1^st September 2006, Kopaonik, Serbia.
8. Antoniou, A., Danezis, E., Lyratzi, E., Nikolaidis, D., Popović, L. Č., Dimitrijević, M. S. & Theodossiou, E.: “The Photospheric And The Respective C IV Regions’ Rotational Velocities In 20 Oe Stars”, 23rd Summer School and International Symposium on the Physics of Ionized Gases, (SPIG 2006), 28^th August – 1^st September 2006, Kopaonik, Serbia.
9. Lyratzi, E., Danezis, E., Popović, L. Č., Dimitrijević, M. S., Nikolaidis, D., Soulikias, A., Antoniou, A. & Stathopoulou, M.: “The complex structure of the SiIV λλ 1393.73, 1402.73 A regions of 57 BeV stars”, JENAM 2004, September 13-17, 2004, Granada, Spain.
10. Danezis, E., Antoniou, A., Popović, L. Č., Dimitrijević, M. S., Lyratzi, E., Nikolaidis, D., Soulikias, A. & Theodossiou, E.: “Satellite Absorption Components of the UV spectral lines SiIV, CIV, NV, and NIV in the atmosphere of the Oe star HD 175754”, JENAM 2004, September 13-17, 2004, Granada, Spain.
11. Danezis, E., Lyratzi, E., Popović, L. Č., Dimitrijević, M. S., Christou, G., Soulikias, A. & Antoniou, A.: “Satellite Absorption Components of the UV spectral lines SiIV, CIV, NV, and NIV in the atmosphere of the Oe star HD 66811 (ζPup)”, JENAM 2004, September, 13-17, 2004, Granada, Spain.
12. Lyratzi, E., Danezis, E., Popović, L. Č., Dimitrijević, M. S., Nikolaidis, D., Thiedossiou, E., Soulikias, A. & Antoniou, A.: “The complex structure of the MgII λλ 2795.523, 2802.698 A regions of 64 Be stars”, 17^th International Conference on Spectral Line Shapes (17^th ICSLS), June 21 to 25, 2004, Paris, France.
13. Lyratzi, E., Danezis, E., Stathopoulou, M., Theodossiou, E., Nikolaidis, D., Antoniou, A., Drakopoulos, C., Soulikias, A. & Koutroumanou, M.: “SACs phenomena in MgII regions of 40 BeV stars”, JENAM 2003, August 25 – 31, 2003 Budapest, Hungary.
14. Lyratzi, E., Danezis, E., Stathopoulou, M., Theodossiou, E., Nikolaidis, D., Antoniou, A., Drakopoulos, C., Soulikias, A. & Koutroumanou, M.: “SACs phenomena in SiIV regions of 42 BeV stars”, JENAM 2003, August 25 – 31, 2003 Budapest, Hungary.
15. Danezis, E., Antoniou, A., Lyratzi, E., Theodossiou, E., Stathopoulou, M., Nikolaidis, D., Drakopoulos, C., Soulikias, A. & Koutroumanou, M.: “The complex structure of hyperionization regions of the Oe star HD 175754”, JENAM 2003, August 25 – 31, 2003 Budapest, Hungary.
16. Danezis, E., Koutroumanou, M., Lyratzi, E., Theodossiou, E., Stathopoulou, M., Nikolaidis, D., Antoniou, A., Drakopoulos, C. & Soulikias, A.: “The complex structure of SiIV regions of the Oe star λ Orionis”, JENAM 2003, August 25 – 31, 2003 Budapest, Hungary.

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