@article{CM_1954-1956__12__1_0,
     author = {Gautschi, Werner},
     title = {Bounds of matrices with regard to an hermitian metric},
     journal = {Compositio Mathematica},
     pages = {1--16},
     publisher = {Kraus Reprint},
     volume = {12},
     year = {1954-1956},
     mrnumber = {64731},
     zbl = {0055.24503},
     language = {en},
     url = {http://archive.numdam.org/item/CM_1954-1956__12__1_0/}
}