Ðèñóíîê 11.33.
ÏÐÎÁÎÉ ÂÛÌÏÅËÀ Â ÏÐÎÒÈÂÎÏÎËÎÆÍÎÌ ÍÀÏÐÀÂËÅÍÈÈ, ÑËÅÄÓÞÙÈÉ ÇÀ ÍÎÐÌÀËÜÍÛÌ ÏÐÎÁÎÅÌ: ÊÎÔÅ. ÄÅÊÀÁÐÜ 1992