@inproceedings{STOC-2008-Ben-AroyaT,
	author        = "Avraham Ben-Aroya and Amnon Ta-Shma",
	booktitle     = "{Proceedings of the 40th Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/1374376.1374424",
	isbn          = "978-1-60558-047-0",
	pages         = "325--334",
	publisher     = "{ACM}",
	title         = "{A combinatorial construction of almost-ramanujan graphs using the zig-zag product}",
	year          = 2008,
}