Citation: P. Bechouche et al., (SEMI)-NONRELATIVISTIC LIMITS OF THE DIRAC-EQUATION WITH EXTERNAL TIME-DEPENDENT ELECTROMAGNETIC-FIELD, Communications in Mathematical Physics, 197(2), 1998, pp. 405-425
Citation: Pa. Markowich et al., A WIGNER-FUNCTION APPROACH TO (SEMI)CLASSICAL LIMITS - ELECTRONS IN APERIODIC POTENTIAL, Journal of mathematical physics, 35(3), 1994, pp. 1066-1094