İSMAİLOV, Z. And Karatash, H. 1999. The normality problem for the first order differential operators. Proc. Inst. Math. and Mech. Azer. Acad.Sci. , vol.10 , 61-66.

İSMAİLOV, Z., & Karatash, H., (1999). The normality problem for the first order differential operators. Proc. Inst. Math. and Mech. Azer. Acad.Sci. , vol.10, 61-66.

İSMAİLOV, ZAMEDDİN, And Hikmet Karatash. "The normality problem for the first order differential operators," Proc. Inst. Math. and Mech. Azer. Acad.Sci. , vol.10, 61-66, 1999

İSMAİLOV, ZAMEDDİN And Karatash, Hikmet. "The normality problem for the first order differential operators." Proc. Inst. Math. and Mech. Azer. Acad.Sci. , vol.10, pp.61-66, 1999

İSMAİLOV, Z. And Karatash, H. (1999) . "The normality problem for the first order differential operators." Proc. Inst. Math. and Mech. Azer. Acad.Sci. , vol.10, pp.61-66.

@article{article, author={ZAMEDDİN İSMAİLOV And author={Hikmet Karatash}, title={The normality problem for the first order differential operators}, journal={Proc. Inst. Math. and Mech. Azer. Acad.Sci.}, year=1999, pages={61-66} }