Kitayama, Yoshie; Muraoka, Masahiro; Takahashi, Megumi; Kodama, Tatsuya; Itoh, Hirofumi; Takahashi, Eriko; Okamura, Mutsuo JAOCS, Journal of the American Oil Chemists' Society, 1996 , vol. 73, # 10 p. 1311 - 1316