Regionalʹnai͡a nauchno-prakticheskai͡a konferent͡sii͡a "Rat͡sionalʹnoe ispolʹzovanie resursov Kamchatki, prilegai͡ushchikh moreĭ i razvitie proizvoditelʹnykh sil do 2010 g." (5th 1989 Petropavlovsk-Kamchatskiĭ, Russia?)