@inbook {makris2014reducing,
	title = {Reducing Redundant Information in Search Results Employing Approximation Algorithms},
	booktitle = {Database and Expert Systems Applications},
	year = {2014},
	pages = {240{\textendash}247},
	publisher = {Springer International Publishing},
	organization = {Springer International Publishing},
	author = {Makris, Christos and Plegas, Yannis and Stamatiou, Yannis C and Elias C. Stavropoulos and Tsakalidis, Athanasios K}
}
