. "B-59" . . "''B-59''" . "1960-02-21" . "Valentin Grigorievich Savitsky" . "7.5" . "submarine ''B-59''" . . "1961-10-06" . "1960-06-11" . . . . . . . "Soviet submarine B-59" . . "91.3" . "1990-04-19" . . . "a real incident" . "Soviet submarine ''B-59''" . . "Soviet submarine B-59" . "B-59 Incident" . .