@article{MS2_1955__3_165572,
     author = {G. PIRANIAN and A.J. LOHWATER and W. RUDIN},
     title = {The derivative of a {Schlichtfunction}},
     journal = {Mathematica Scandinavica},
     pages = {103--106},
     publisher = {mathdoc},
     volume = {3},
     year = {1955},
     zbl = {0065.06901},
     url = {http://geodesic.mathdoc.fr/item/MS2_1955__3_165572/}
}