@article{MZ_1981__176_183641,
     author = {Alfred Czogala},
     title = {Arithmetic {Characterization} of {Algebraic} {Number} {Fields} with {Small} {Class} {Numbers.}},
     journal = {Mathematische Zeitschrift},
     pages = {247--254},
     publisher = {mathdoc},
     volume = {176},
     year = {1981},
     zbl = {0432.12003},
     url = {http://geodesic.mathdoc.fr/item/MZ_1981__176_183641/}
}