Text ( visual ) : unmediated An interactive software design and implementation support system STEP / Ken'ichi Harada, Masami Noro. -- [Yokohama] : Institute of Information Science, Keio University , 1986. -- 28 p. : ill. ; 30 cm. -- Bibliography: p. 28 ; "KIIS-85-01". -- (BA73067301) ; https://ci.nii.ac.jp/ncid/BA73067301 Author Heading(s): 原田, 賢一 ; Noro, Masami