@article {MR2475645,
	title = {The settling time reducibility ordering and $\Delta_2^0$ sets},
	journal = {J. Logic Comput.},
	volume = {19},
	number = {1},
	year = {2009},
	pages = {145{\textendash}150},
	issn = {0955-792X},
	doi = {10.1093/logcom/exn031},
	url = {https://doi.org/10.1093/logcom/exn031},
	author = {Csima, Barbara F.}
}
