Kobayashi, Kazuo (ed.) (1988): Preliminary report of the Hakuho Maru Cruise KH86-2; Geophysical and geological investigation of the northeastern part of the Sea of Japan and Japan Trench (ODP site survey) with an annex for preliminary report of the Tansei Maru Cruise KT 87-6; Investigation on the sea-floor spreading tectonics in the northeastern part of Japan Basin (ODP site survey). University of Tokyo, Ocean Research Institute, Tokyo, Japan, Preliminary Report - Ocean Research Institute, University of Tokyo, KH86-2, 130 pp., georefid:1988-063840