by Sugai, Hajime, Usuda, Tomonori, Kataza, Hirokazu, Tanaka, Masuo, Inoue, Motoko Y., Takami, Hideki, Aoki, Tetsuo, Hiromoto, Norishisa, Kawavata, Hironobu
Published in The Astrophysical journal (10.01.1994)