http%3A%2F%2http://mapgroup.com.ua/component/docman/doc_download/32-osnovy-yazyka-programmirovaniya-idl?Itemid=%2Fdefault.aspx%3Fmode%3Dbinary%26id%3D612&ei=LI9nVND-LIjcywOgq4GgDA&usg=AFQjCNG0HmbP-NmkcKWRb6F3y5dROaGadw&sig2=8b0sbmyFhfryHvkEWllW-w