Summary
Ole Christensen, Hong Oh Kim and Rae Young Kim (2014) On Parseval wavelet frames with two or three generators via the unitary extension principle. Canad. Math. Bull., 57(2):254–263. 
Bibtex entry
@ARTICLE { MR3194170,
AUTHOR = { Ole Christensen and Hong Oh Kim and Rae Young Kim },
TITLE = { On {P}arseval wavelet frames with two or three generators via the unitary extension principle },
JOURNAL = { Canad. Math. Bull. },
FJOURNAL = { Canadian Mathematical Bulletin. Bulletin Canadien de Math\'ematiques },
VOLUME = { 57 },
YEAR = { 2014 },
NUMBER = { 2 },
PAGES = { 254--263 },
ISSN = { 0008-4395 },
MRCLASS = { 42C40 (42C15) },
MRNUMBER = { 3194170 },
MRREVIEWER = { Aleksandr Krivoshein },
DOI = { 10.4153/CMB-2013-015-9 },
URL = { http://dx.doi.org/10.4153/CMB-2013-015-9 },
}