@article {stanimirovic2019inversion,
	title = {Inversion and pseudoinversion of block arrowhead matrices},
	journal = {Applied Mathematics and Computation},
	volume = {341},
	year = {2019},
	pages = {379{\textendash}401},
	publisher = {Elsevier},
	author = {Predrag S. Stanimirovi{\'c} and Vasilios N. Katsikis and Kolund{\.z}ija, Dejan}
}
