Petrov, N. Et Al. 2000. Structure, Brightness Distribution and Flattening of the 1999 Eclipse Solar Corona. Proceedings of International Conference "First Results of 1999 Total Solar Eclipse , (Varna, Bulgaria), 57-62.

Petrov, N., ÖZKAN, M. T., Dermendjiev, V. N., ÖKTEN, A., & Rompolt, B., (2000). Structure, Brightness Distribution and Flattening of the 1999 Eclipse Solar Corona . Proceedings of International Conference "First Results of 1999 Total Solar Eclipse (pp.57-62). Varna, Bulgaria

Petrov, Nikola Et Al. "Structure, Brightness Distribution and Flattening of the 1999 Eclipse Solar Corona," Proceedings of International Conference "First Results of 1999 Total Solar Eclipse, Varna, Bulgaria, 2000

Petrov, Nikola Et Al. "Structure, Brightness Distribution and Flattening of the 1999 Eclipse Solar Corona." Proceedings of International Conference "First Results of 1999 Total Solar Eclipse , Varna, Bulgaria, pp.57-62, 2000

Petrov, N. Et Al. (2000) . "Structure, Brightness Distribution and Flattening of the 1999 Eclipse Solar Corona." Proceedings of International Conference "First Results of 1999 Total Solar Eclipse , Varna, Bulgaria, pp.57-62.

@conferencepaper{conferencepaper, author={Nikola Petrov Et Al. }, title={Structure, Brightness Distribution and Flattening of the 1999 Eclipse Solar Corona}, congress name={Proceedings of International Conference "First Results of 1999 Total Solar Eclipse}, city={Varna}, country={Bulgaria}, year={2000}, pages={57-62} }