C93, D83, D91, J24, M51, O15
D83 (Search, Learning, Information and Knowledge; Communication; Belief; Unawareness); D91 (Role
I12, I18, D83, C93
I24; I23; C93; D83; O33
D83, J15, L84
J64, J21, J24, J46, D03, D81, D83, C93, L86, J62
C91, D81, D83, D84
H56, D83, C90, F51
J31, J33, J41, D83
C93, D84, D83, Q54, Q12, O13