@article{10_4064_aa_39_4_323_337,
     author = {Horst Pfeuffer},
     title = {Komposition und {Klassenzahlen} bin\"arer quadratischer {Formen}},
     journal = {Acta Arithmetica},
     pages = {323--337},
     publisher = {mathdoc},
     volume = {39},
     number = {4},
     year = {1981},
     doi = {10.4064/aa-39-4-323-337},
     language = {de},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-39-4-323-337/}
}