@INPROCEEDINGS{Noack2004aiaa, AUTHOR = {Noack, B.~R.\ and Tadmor, G.\ and Morzy\'nski, M.}, YEAR = {2004}, TITLE = {Low-dimensional models for feedback flow control. {P}art {I}: {E}mpirical {G}alerkin models}, BOOKTITLE = {2nd AIAA Flow Control Conference}, ADDRESS ={Portland, Oregon, USA, June 28 -- July 1, 2004}, NOTE = {AIAA Paper 2004-2408 (invited contribution)}}