[այստեղից][1]
  
 _ու տենց _

 [1]: http://groups.google.am/group/comp.lang.oberon/browse_thread/thread/ffe11b45037375e0/e8b65d37114d4931?hl=hy&ie=UTF-8&oe=utf-8&q=andreas+borchert+c+interfaces#e8b65d37114d4931