@misc{Holub_James_R._Invertibility_2002,
 author={Holub, James R.},
 volume={50},
 editor={Polska Akademia Nauk.},
 number={3},
 copyright={Rights Reserved - Restricted Access},
 address={Warsaw},
 howpublished={online},
 year={2002},
 publisher={Polska Akademia Nauk. Centrum Upowszechniania Nauki.},
 language={eng},
 title={Invertibility of operators on Hilbert space defined by Frames},
 type={Text},
}