@article{MZ_1986__192_173745,
     author = {Peter Meyer-Nieberg},
     title = {An {Interpolation} {Result} for the {Spectral} {Radius.}},
     journal = {Mathematische Zeitschrift},
     pages = {421--426},
     publisher = {mathdoc},
     volume = {192},
     year = {1986},
     zbl = {0657.47042},
     url = {http://geodesic.mathdoc.fr/item/MZ_1986__192_173745/}
}