@article{ERAAMS_2006_12_a9,
     author = {Balan, Radu and Casazza, Peter and Heil, Christopher and Landau, Zeph},
     title = {Density, overcompleteness, and localization of frames},
     journal = {Electronic research announcements of the American Mathematical Society},
     pages = {71--86},
     publisher = {mathdoc},
     volume = {12},
     year = {2006},
     doi = {10.1090/S1079-6762-06-00163-6},
     url = {http://geodesic.mathdoc.fr/articles/10.1090/S1079-6762-06-00163-6/}
}