@article{10_1017_S0017089500006893,
     author = {Kittaneh, Fuad},
     title = {On normal derivations of {Hilbert{\textendash}Schmidt} type},
     journal = {Glasgow mathematical journal},
     pages = {245--248},
     year = {1987},
     volume = {29},
     number = {2},
     doi = {10.1017/S0017089500006893},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500006893/}
}