@TechReport{rosu-2005-tr-b,
author = {Grigore Ro\c{s}u},
title = "An Effective Algorithm for the Membership Problem for Extended Regular Expressions",
institution = {Department of Computer Science, University  of Illinois at Urbana-Champaign},
Number     = {UIUCDCS-R-2005-2964},
Year       = {2005}
}