@article {MR3397345,
	title = {Measuring complexities of classes of structures},
	journal = {Ann. Pure Appl. Logic},
	volume = {166},
	number = {12},
	year = {2015},
	pages = {1365{\textendash}1381},
	issn = {0168-0072},
	doi = {10.1016/j.apal.2015.08.001},
	url = {https://doi.org/10.1016/j.apal.2015.08.001},
	author = {Csima, Barbara F. and Knoll, Carolyn}
}
