$1!>5'ED3BD'`qK_p!C%!Cd!M"!:Z!:Ms - $1!_V!bu!3K!JH!Na'Q['[M!\ks ($1!_V!bu!3K!JH!Nas, 1994)
Keywords: $1!:M!9B3BD!S,(B; $1'X,!:M3BD!S,s