Note: IUMRS-ICAM'99 conference in Beijing, June 13-18, 1999 (JJ02 talk).
Note: this appears in Multiscale Modelling of Materials, T. Diaz de la Rubia, T. Kaxiras, V. Bulatov, N.M. Ghoniem, R. Phillips, ed., Symposium J MRS Fall Meeting 1998, Boston, USA, Nov 30-Dec 3, 1998.
Note: send to printer instead of screen.