@article{MM2_1988__62_3_155332,
     author = {Yoshiki Hayashi},
     title = {Reelle biquadratische {Zahlk\"orper} mit ungerader {Klassenzahl.}},
     journal = {Manuscripta mathematica},
     pages = {65--82},
     publisher = {mathdoc},
     volume = {62},
     number = {3},
     year = {1988},
     zbl = {0662.12007},
     url = {http://geodesic.mathdoc.fr/item/MM2_1988__62_3_155332/}
}