@misc{Banas_J._(P,Q),
 author={Banas, J. and Ali, A. B. and Mahfoudhi, K. and Saadaoui, B.},
 address={Երևան},
 howpublished={online},
 publisher={Հայաստանի ԳԱԱ},
 type={Հոդված},
 title={(P,Q) − ε-pseudo condition spectrum for 2 × 2 matrices. Linear operator and application},
 keywords={Mathematics},
}