https://www.spf.org/en ja-jp Sun, 19 Apr 2026 18:39:26 +0900 https://www.spf.org/en/opri/publication/northern_sea_route_future_perspectivethe_proceedings_of_insrop_symposium_tokyo_95_ist95.html Mon, 01 Jan 1996 00:00:00 +0900 https://www.spf.org/en/opri/publication/yamato--1_worlds_first_superconducting_magnetohydrodynamic_propulsion_ship.html Sat, 01 Mar 1997 00:00:00 +0900 https://www.spf.org/en/opri/publication/investigation_of_techniques_for_at-sea_responses_to_marine_oil_spills.html Tue, 01 Jul 1997 00:00:00 +0900 https://www.spf.org/en/opri/publication/international_symposium_on_marine_oil_spill_response_tokyo_1997.html Mon, 01 Dec 1997 00:00:00 +0900 https://www.spf.org/en/opri/publication/shipbuilding_in_japan_1997-1998.html Thu, 01 Jan 1998 00:00:00 +0900 https://www.spf.org/en/opri/publication/international_nothern_sea_route_programme_integration_book.html Sat, 02 Jan 1999 00:00:00 +0900 https://www.spf.org/en/opri/publication/shipbuilding_in_japan_1998-1999.html Sun, 03 Jan 1999 00:00:00 +0900 https://www.spf.org/en/opri/publication/insrop_gis_international_northern_sea_route_programme_geographic_information_system.html Mon, 01 Mar 1999 00:00:00 +0900 https://www.spf.org/en/opri/publication/the_northern_sea_route_user_conference_the_21st_century-turning_point_for_the_northern_sea_rout_18-2.html Mon, 01 Nov 1999 00:00:00 +0900 https://www.spf.org/en/opri/publication/a_report_on_research_concerning_the_reduction_of_co2_emission_from_vessels.html Tue, 01 Aug 2000 00:00:00 +0900