%0 Journal Article %T Regulated Functions with values in the Banach Algebra of Quaternions %A Fernandes L.A.O. %A Arbach %A R. %J Lecture Notes in Engineering and Computer Science %D 2011 %I Newswood and International Association of Engineers %U http://www.iaeng.org/publication/WCE2011/WCE2011_pp196-201.pdf