B. Dong et Yt. Wang, THE IMPURITY ENERGY-LEVELS IN A CYLINDRICAL QUANTUM-WELL WIRE AT WEAKMAGNETIC-FIELD, Solid state communications, 89(1), 1994, pp. 13-16
The variational and perturbation method is developed to solve the impu
rity levels problems of quasi-one-dimensional quantum well wires. The
results given by this method are in good agreement with those derived
by other methods.