@article{10_4064_ap_35_2_111_115,
     author = {J. Janas},
     title = {Note on the spectral inclusion theorem for {Toeplitz} operators},
     journal = {Annales Polonici Mathematici},
     pages = {111--115},
     publisher = {mathdoc},
     volume = {35},
     number = {2},
     year = {1977},
     doi = {10.4064/ap-35-2-111-115},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-35-2-111-115/}
}