Martin, AndréWu, Tai Tsun2019-10-172004Martin, André, and Tai Tsun Wu. 2004. “Bound States in Two Spatial Dimensions in the Noncentral Case.” Journal of Mathematical Physics 45 (3): 922–31. https://doi.org/10.1063/1.1639956.0022-24881089-7658http://nrs.harvard.edu/urn-3:HUL.InstRepos:41555809en-USJournal Article2019-10-1710.1063/1.1639956