@article {361180,
	title = {The origin of the problems in {E}uler{\textquoteright}s {A}lgebra},
	journal = {Bulletin of the Belgian Mathematical Society - Simon Stevin},
	volume = {13},
	number = {5},
	year = {2006},
	pages = {949{\textendash}952},
	issn = {1370-1444},
	author = {Heeffer, Albrecht}
}
