Patrick Flandrin Antonio Napolitano Haldun M. Özaktas David J. Thomson Recent Advances in Theory and Methods for Nonstationary Signal Analysis. 2011 2011 EURASIP J. Adv. Sig. Proc. http://dx.doi.org/10.1155/2011/963642 db/journals/ejasp/ejasp2011.html#FlandrinNOT11