$1'3x!\)!>4!Na'CZ!=x!KH':`s - $1!JY'bV'V*(B. M. $1!TP!5*'Yh'JEs ($1!0&!GW!Na'CZ!O(':`!^z!3K!JH!Nas, 1987)
Keywords: $1!Na'CZ!=x!KH':`s