@article{10_4064_sm_15_1_43_55,
     author = {P. Sz\"usz},
     title = {L\"osung eines {Problems} von {Herrn} {Hartman}},
     journal = {Studia Mathematica},
     pages = {43--55},
     publisher = {mathdoc},
     volume = {15},
     number = {1},
     year = {1955},
     doi = {10.4064/sm-15-1-43-55},
     language = {de},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-15-1-43-55/}
}