@article{JRAM_1868__69_148070,
     author = {M. Stern},
     title = {Ueber einige {Eigenschaften} der {Trigonalzahlen.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {370--380},
     publisher = {mathdoc},
     volume = {69},
     year = {1868},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1868__69_148070/}
}