@article{JRAM_1851__42_183335,
     author = {Chr. Gudermann},
     title = {De arithmetice determinanda area oblongi sphaerici e datis lateribus, et de theoremate {Pythagorae} e {Planimetria} in {Sphaericam} evehendo.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {280--281},
     publisher = {mathdoc},
     volume = {42},
     year = {1851},
     language = {la},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1851__42_183335/}
}