@article {ma2019perturbation,
	title = {Perturbation theory for Moore{\textendash}Penrose inverse of tensor via Einstein product},
	journal = {Computational and Applied Mathematics},
	volume = {38},
	number = {3},
	year = {2019},
	pages = {111},
	publisher = {Springer International Publishing},
	author = {Haifeng Ma and Li, Na and Predrag S. Stanimirovi{\'c} and Vasilios N. Katsikis}
}
