@article{ELMA_1974__29_141143,
     author = {Bruce C. Berndt},
     title = {A new proof of the reciprocity theorem for {Dedekind} sums.},
     journal = {Elemente der Mathematik},
     pages = {93--94},
     publisher = {mathdoc},
     volume = {29},
     year = {1974},
     zbl = {0283.10010},
     url = {http://geodesic.mathdoc.fr/item/ELMA_1974__29_141143/}
}