"Takeshi Nakazato,Taishi Nakamoto,Masayuki Umemura","A Spectrophotometric Method to Determine the Inclination of Class I Objects",,"The Astrophysical Journal",,"Volume 583",,"pp. 322-329",2003,Jan. "中本泰史","天文の事典",,,"朝倉書店",,,"pp. 384-399",2003,