@book { 5834,
	title = {Logik der Forschung},
	publisher = {Mohr,},
	year = {1976},
	series = {Die Einheit der Gesellschaftswissenschaften ; 4},
	note = {graph. Darst.[br]
Engl. Ausg. u.d.T.: The logic of scientific discovery},
	author = {Popper, , Karl R.}
}