Report by Professor Richard Wilsonდაარქივებული 2013-09-21 საიტზე Wayback Machine. "On the Visit to the Armenian-Azerbaijani Border, May 25–29, 1991" Presented to the First International Sakharov Conference on Physics, Lebedev Institute, Moscow on May 31, 1991.
Report by Professor Richard Wilsonდაარქივებული 2013-09-21 საიტზე Wayback Machine. "On the Visit to the Armenian-Azerbaijani Border, May 25–29, 1991" Presented to the First International Sakharov Conference on Physics, Lebedev Institute, Moscow on May 31, 1991.
