Caput IX.
In Quo Methodus Integrandi a Primis Principiis usque ad Integrationem Aequationum Differentialium Primi Gradus Pertractatur Volumen 1, GDML_Books, (1792), p. 225 / Harvested from
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@article{PPN597788154+DMDLOG_0012,
     title = {Caput IX.},
     booktitle = {In Quo Methodus Integrandi a Primis Principiis usque ad Integrationem Aequationum Differentialium Primi Gradus Pertractatur Volumen 1},
     series = {GDML\_Books},
     publisher = {Academia Imperialis Scientiarum},
     address = {Petropoli},
     year = {1792},
     pages = {225},
     url = {http://dml.mathdoc.fr/item/PPN597788154+DMDLOG_0012}
}

 (éd.). Caput IX., dans In Quo Methodus Integrandi a Primis Principiis usque ad Integrationem Aequationum Differentialium Primi Gradus Pertractatur Volumen 1, GDML_Books,  (1792), p. 225. http://gdmltest.u-ga.fr/item/PPN597788154+DMDLOG_0012/