TY - BOOK AU - Landwehgr Klaus ed TI - Ecological perception research visual communication and aesthetics T2 - Meeting of students of perception and viusal communication at Bonn Poppelsdorf 1987 U1 - S:25-4, N0-;1 (SD) PY - 1990/// CY - London PB - Springer Verlag KW - PSYCHOLOGY ER -