@article{JRAM_1891__107_148803,
     author = {K. Schwering},
     title = {Multiplication der lemniscatischen {Function} sin am u.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {196},
     publisher = {mathdoc},
     volume = {107},
     year = {1891},
     zbl = {23.0476.03},
     language = {un},
     url = {https://geodesic-test.mathdoc.fr/item/JRAM_1891__107_148803/}
}