The Northern Sea Route [Text] : the shortest sea route linking East Asia and Europe. - Tokyo : Ship & Ocean Foundation, 2000. - 242 p.: Ill. - ISBN 4-916148-94-0 Tekst japon. m.
The Northern Sea Route [Text] : the shortest sea route linking East Asia and Europe / supervised by H. Kitagawa. - Tokyo : Ship and Ocean Foundation, 2001. - 230 p.: fig. - Бібліогр.: P.165-168. - ISBN 4-88404-027-9