@inbook {5111,
	title = {Abstract Versus Concrete Temporal Query Languages},
	booktitle = {Encyclopedia of Database Systems},
	year = {2018},
	publisher = {Springer},
	organization = {Springer},
	doi = {10.1007/978-1-4614-8265-9_1559},
	author = {Jan Chomicki and David Toman}
}
