@article{10_4064_sm_103_1_17_24,
     author = {M. I. Gil},
     title = {On an estimate for the norm of a function of a quasihermitian operator},
     journal = {Studia Mathematica},
     pages = {17--24},
     publisher = {mathdoc},
     volume = {103},
     number = {1},
     year = {1992},
     doi = {10.4064/sm-103-1-17-24},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-103-1-17-24/}
}