@mastersthesis {18,
	title = {Symmetry: its effects on recall, preference and discrimination of visual patterns in relation to age and intelligence},
	volume = {Ph.D. Thesis},
	year = {1967},
	pages = {110},
	school = {University of Illinois},
	address = {Urbana},
	url = {http://psychlabuoa.psych.uoa.gr/psychlab/papers/I_N_Paraskevopoulos_PhD_1967.pdf},
	author = {Paraskevopoulos, I.N.}
}
