@ARTICLE{
author={Stevanovic Ljiljana,Sen KD},
year={2008},
title={Eigenspectrum properties of the confined 3D harmonic oscillator},
journal={JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS},
volume={41},
number={22},
pages={-},
document_type={Article},
} 

@ARTICLE{
author={Stevanovic Ljiljana,Sen KD},
year={2008},
title={Simultaneous degeneracy of the confined 2D hydrogen atom energy levels},
journal={JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS},
volume={41},
number={20},
pages={-},
document_type={Article},
} 

@ARTICLE{
author={Stevanovic Ljiljana,Sen KD},
year={2008},
title={A study of the confined 2D isotropic harmonic oscillator in terms of the annihilation and creation operators and the infinitesimal operators of the SU(2) group},
journal={JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL},
volume={41},
number={26},
pages={-},
document_type={Article},
}