$1!3x!E-!Cd!^U!CZ!X8!VG!KH!HK!3m (B/ s - $1!Yl!43!CZ!X8!HK!3m!9f!6>!CZs ($1!T+!4I!<D (B: s $1!Yl!7s!G*!0d!04!U<!FM!7o!CZ!X8KN7!ON!L{!;Z!8<!]>!CZ(B, s, 1992)
$1!^u!]t!0!(B:$1!]8!1N!Xi!C!(B:$1'b^(B4-26s
$1!^u!]t!0Q(B:$1!Be!T5!Dc!BX!;C!Iq!WO(B:$1'b^(B27-32s