@article{oai:repository.dl.itc.u-tokyo.ac.jp:00038746,
 author = {Horikoshi, Masuoki and Ohta, Suguru},
 issue = {40},
 journal = {Preliminary report of the Hakuhō Maru cruise},
 month = {},
 note = {航海番号: KH-81-4 ; 航海日程: July 6 - August 4, 1981},
 pages = {1--91},
 title = {(WESTPAC) Japan Trench},
 volume = {1981},
 year = {1988}
}