@article{EXMA_1996__5_2_231461,
     author = {Appel, Matthew J. and Bourdon, Paul S. and Thrall, John J.},
     title = {Norms of composition operators on the {Hardy} space.},
     journal = {Experimental mathematics},
     pages = {111--117},
     publisher = {mathdoc},
     volume = {5},
     number = {2},
     year = {1996},
     zbl = {0862.47015},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EXMA_1996__5_2_231461/}
}