@article{10_5817_AM2015_4_233,
     author = {Dragomir, S.S.},
     title = {Ostrowski{\textquoteright}s type inequalities for complex functions defined on unit circle with applications for unitary operators in {Hilbert} spaces},
     journal = {Archivum mathematicum},
     pages = {233--254},
     publisher = {mathdoc},
     volume = {51},
     number = {4},
     year = {2015},
     doi = {10.5817/AM2015-4-233},
     mrnumber = {3434605},
     zbl = {06537727},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.5817/AM2015-4-233/}
}