@article{10_4064_sm219_3_4,
     author = {J\"org Eschmeier},
     title = {The essential spectrum of {Toeplitz} tuples with
 symbols in $H^{\infty } + C$},
     journal = {Studia Mathematica},
     pages = {237--246},
     publisher = {mathdoc},
     volume = {219},
     number = {3},
     year = {2013},
     doi = {10.4064/sm219-3-4},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm219-3-4/}
}