@article{10_4153_CJM_1971_104_4,
     author = {Pranger, Walter},
     title = {Extreme {Points} in the {Hardy} {Class} {H} 1 of a {Riemann} {Surface}},
     journal = {Canadian journal of mathematics},
     pages = {969--976},
     year = {1971},
     volume = {23},
     number = {6},
     doi = {10.4153/CJM-1971-104-4},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1971-104-4/}
}