Lee J.C., A.C. Fabian, K. Iwasawa, W.N. Brandt, and C.S. Reynolds, in (ASP, Gräft\R Avallen, Swedish Mountains, 1999).
Lee J.C., A.C. Fabian, W.N. Brandt, C.S. Reynolds, and K. Iwasawa, Monthly Notices Of The Royal Astronomical Society 310, 973-981 (1999).
Lee J.C., A.C. Fabian, C.S. Reynolds, K. Iwasawa, and W.N. Brandt, Monthly Notices Of The Royal Astronomical Society 300, 583-588 (1998).