@article{10_4064_cm_34_1_127_136,
     author = {David M. Boyd},
     title = {Composition operators on the {Bergman} space},
     journal = {Colloquium Mathematicum},
     pages = {127--136},
     publisher = {mathdoc},
     volume = {34},
     number = {1},
     year = {1975},
     doi = {10.4064/cm-34-1-127-136},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-34-1-127-136/}
}