000  $anz n  2
000  $a주제어
001  $aKSH1998000811
005  $a19980429124952
008  $a980429 n azknnaabn          |a a|a    | 
150  $aSGMP
450  $wr$i영어$asimple gateway monitoring protocol
550  $wg$a프로토콜(통신)[protocol]