@book{80443,
	author = {Hilding, Sven H.},
	title = {On the clorure of disturbed complete orthonormal set in Hilbert Space / },
	editor = {Almquist et Wiksells)},
	publisher = {s.n., },
	year = {1945] (},
	series = {Arkiv für mathematik astronomi och fisik. 7 ; },
	address = {[S.l. : }
}