@book{PPN58477320X, title = {Insunt plura inedita, tractatus de numerorum doctrina capita XVI aliaque Tomus prior}, series = {GDML\_Books}, publisher = {Acad. Scient.}, address = {Petropoli}, year = {1849}, language = {la}, url = {http://dml.mathdoc.fr/item/PPN58477320X} }
Euler, Leonhard. Insunt plura inedita, tractatus de numerorum doctrina capita XVI aliaque Tomus prior. GDML_Books (1849), http://gdmltest.u-ga.fr/item/PPN58477320X/