Pentagramma mirificum
Analysis Bd. 3, GDML_Books, (1866), p. 481 / Harvested from
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@article{PPN235999628+dmdlog56,
     title = {Pentagramma mirificum},
     booktitle = {Analysis Bd. 3},
     series = {GDML\_Books},
     year = {1866},
     pages = {481},
     url = {http://dml.mathdoc.fr/item/PPN235999628+dmdlog56}
}

 (éd.). Pentagramma mirificum, dans Analysis Bd. 3, GDML_Books,  (1866), p. 481. http://gdmltest.u-ga.fr/item/PPN235999628+dmdlog56/