XII. De numeris, qui sunt aggregata duorum quadratorum.
Insunt plura inedita, tractatus de numerorum doctrina capita XVI aliaque Tomus prior, GDML_Books, (1849), p. 155 / Harvested from
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@article{PPN58477320X+DMDLOG_0021,
     title = {XII. De numeris, qui sunt aggregata duorum quadratorum.},
     booktitle = {Insunt plura inedita, tractatus de numerorum doctrina capita XVI aliaque Tomus prior},
     series = {GDML\_Books},
     publisher = {Acad. Scient.},
     address = {Petropoli},
     year = {1849},
     pages = {155},
     url = {http://dml.mathdoc.fr/item/PPN58477320X+DMDLOG_0021}
}

 (éd.). XII. De numeris, qui sunt aggregata duorum quadratorum., dans Insunt plura inedita, tractatus de numerorum doctrina capita XVI aliaque Tomus prior, GDML_Books,  (1849), p. 155. http://gdmltest.u-ga.fr/item/PPN58477320X+DMDLOG_0021/