@article{10_4064_sm_21_2_215_229,
     author = {L. Berg},
     title = {Asymptotische {Auffassung} der {Operatorenrechnung}},
     journal = {Studia Mathematica},
     pages = {215--229},
     publisher = {mathdoc},
     volume = {21},
     number = {2},
     year = {1961},
     doi = {10.4064/sm-21-2-215-229},
     language = {de},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-21-2-215-229/}
}