Leon J. Sigal
and James D. Warnock
and Brian W. Curran
and Yuen H. Chan
and Peter J. Camporese
and Mark D. Mayo
and William V. Huott
and Daniel R. Knebel
and Ching-Te Chuang
and James P. Eckhardt
and Philip T. WuIBM Journal of Research and Development41
489-504
(1997)