Koe00 = P.E. Koehler, R.R. Winters, K.H. Guber, T. Rauscher, J.A. Harvey, S. Raman, R.R. Spencer, J.C. Blackmon, D.C. Larson, D.W. Bardayan, T.A. Lewis, Phys. Rev C 62, (2000) 055803.