db/conf/echt/MasudaIU94.html Yoshihiro Masuda Yasuhiro Ishitobi Manabu Ueda Frame-Axis Model for Automatic Information Organizing and Spatial Navigation. 146-157 ECHT1994/P146.pdf 1994 conf/echt/94 ECHT db/conf/echt/echt94.html#MasudaIU94