TY - JOUR
AU - C. Cerjan
AU - William Reinhardt
AU - J. Avron
BT - Journal of Physics B: Atomic and Molecular Physics
DA - Feb-04-1979
DO - 10.1088/0022-3700/11/7/002
PY - 1978
SP - L201 
EP -  L205
T2 - Journal of Physics B: Atomic and Molecular Physics
TI - Spectra of atomic Hamiltonians in DC fields: use of the numerical range to investigate the effect of a dilatation transformation
VL - 11
SN - 0022-3700
ER -