@article {9387,
	title = {Necessary Fredholm conditions for weighted singular integral operators with shifts and slowly oscillating data},
	journal = {Journal of Integral Equations and Applications},
	volume = {29},
	year = {2017},
	pages = {365-399},
	author = {Karlovich, Alexei Yu. and Karlovich, Yuri I. and Lebre, Amarino B.}
}
