Varia.
Leonhardi Euleri opera postuma mathematica et physica anno MDCCCXLIV detecta Tomus 2, GDML_Books, (1862), p. 781 / Harvested from
Access to full text 
@article{PPN584980116+DMDLOG_0007,
     title = {Varia.},
     booktitle = {Leonhardi Euleri opera postuma mathematica et physica anno MDCCCXLIV detecta Tomus 2},
     series = {GDML\_Books},
     publisher = {Eggers},
     address = {Petropoli},
     year = {1862},
     pages = {781},
     url = {http://dml.mathdoc.fr/item/PPN584980116+DMDLOG_0007}
}

 (éd.). Varia., dans Leonhardi Euleri opera postuma mathematica et physica anno MDCCCXLIV detecta Tomus 2, GDML_Books,  (1862), p. 781. http://gdmltest.u-ga.fr/item/PPN584980116+DMDLOG_0007/