@article{10_1017_S0017089500009095,
     author = {Campbell, James T. and Jamison, James E.},
     title = {On some classes of weighted composition operators},
     journal = {Glasgow mathematical journal},
     pages = {87--94},
     year = {1990},
     volume = {32},
     number = {1},
     doi = {10.1017/S0017089500009095},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500009095/}
}