The supersymmetric WKB approximation of ring-shaped oscillator potential in r and θ dimensions with spherical polar coordinates
陈刚, 陈子栋
The supersymmetric WKB approximation of ring-shaped oscillator potential in r and $\theta$ dimensions with spherical polar coordinates
Chen Gang (陈刚), Chen Zi-Dong (陈子栋)
中国物理B . 2004, (4): 445 -447 .  DOI: 10.1088/1009-1963/13/4/005