TY - JOUR AU - Fefferman, Charles AU - Weinstein, Michael TI - Honeycomb lattice potentials and Dirac points JO - Journal of the American Mathematical Society PY - 2012 SP - 1169 EP - 1220 VL - 25 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.1090/S0894-0347-2012-00745-0/ DO - 10.1090/S0894-0347-2012-00745-0 ID - 10_1090_S0894_0347_2012_00745_0 ER -