$1!a)!H$(B: $1!?b!4%!M"!<7!6F!P'!KHs - $1!WR'WI!Oz!UNs ($1!04K7o!0d!FM!9%':`!3K!JH!Nas, 1994)
Keywords: $1!Na'CZ!O(':`'5+'CUs