BAŞAL, M. And BOSTANCI GÜVER, Z. F. 2007. The Sunspot Observations Made in 1999. Journal of Mathematics, Physics and Astronomy , vol.2 , 2007081-20070819.

BAŞAL, M., & BOSTANCI GÜVER, Z. F., (2007). The Sunspot Observations Made in 1999. Journal of Mathematics, Physics and Astronomy , vol.2, 2007081-20070819.

BAŞAL, Mevlana, And Zahide Funda BOSTANCI GÜVER. "The Sunspot Observations Made in 1999," Journal of Mathematics, Physics and Astronomy , vol.2, 2007081-20070819, 2007

BAŞAL, Mevlana And BOSTANCI GÜVER, Zahide F. . "The Sunspot Observations Made in 1999." Journal of Mathematics, Physics and Astronomy , vol.2, pp.2007081-20070819, 2007

BAŞAL, M. And BOSTANCI GÜVER, Z. F. (2007) . "The Sunspot Observations Made in 1999." Journal of Mathematics, Physics and Astronomy , vol.2, pp.2007081-20070819.

@article{article, author={Mevlana BAŞAL And author={Zahide Funda BOSTANCI GÜVER}, title={The Sunspot Observations Made in 1999}, journal={Journal of Mathematics, Physics and Astronomy}, year=2007, pages={2007081-20070819} }