Mustafayev, H. 2014. The essential spectrum of the essentially isometric operator. Canadian Mathematical Bulletin , vol.57, no.1 , 145-158.

Mustafayev, H., (2014). The essential spectrum of the essentially isometric operator. Canadian Mathematical Bulletin , vol.57, no.1, 145-158.

Mustafayev, Heybetkulu. "The essential spectrum of the essentially isometric operator," Canadian Mathematical Bulletin , vol.57, no.1, 145-158, 2014

Mustafayev, Heybetkulu. "The essential spectrum of the essentially isometric operator." Canadian Mathematical Bulletin , vol.57, no.1, pp.145-158, 2014

Mustafayev, H. (2014) . "The essential spectrum of the essentially isometric operator." Canadian Mathematical Bulletin , vol.57, no.1, pp.145-158.

@article{article, author={Heybetkulu Mustafayev}, title={The essential spectrum of the essentially isometric operator}, journal={Canadian Mathematical Bulletin}, year=2014, pages={145-158} }