Yigit, E. Et Al. 2018. Critical frequencies of the ionospheric F-1 and F-2 layers during the last four solar cycles: Sunspot group type dependencies. JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS , vol.171 , 157-163.

Yigit, E., KILÇIK, A., ELIAS, A. G., Donmez, B., Ozguc, A., YURCHSHYN, V., ... ROZELOT, J.(2018). Critical frequencies of the ionospheric F-1 and F-2 layers during the last four solar cycles: Sunspot group type dependencies. JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS , vol.171, 157-163.

Yigit, Erdal Et Al. "Critical frequencies of the ionospheric F-1 and F-2 layers during the last four solar cycles: Sunspot group type dependencies," JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS , vol.171, 157-163, 2018

Yigit, Erdal Et Al. "Critical frequencies of the ionospheric F-1 and F-2 layers during the last four solar cycles: Sunspot group type dependencies." JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS , vol.171, pp.157-163, 2018

Yigit, E. Et Al. (2018) . "Critical frequencies of the ionospheric F-1 and F-2 layers during the last four solar cycles: Sunspot group type dependencies." JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS , vol.171, pp.157-163.

@article{article, author={Erdal Yigit Et Al. }, title={Critical frequencies of the ionospheric F-1 and F-2 layers during the last four solar cycles: Sunspot group type dependencies}, journal={JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS}, year=2018, pages={157-163} }