@article{SIGMA_2012_8_a88,
     author = {Philip Broadbridge and Claudia M. Chanu and Willard Miller Jr.},
     title = {Solutions of {Helmholtz} and {Schr\"odinger} {Equations} with {Side} {Condition} and {Nonregular} {Separation} of {Variables}},
     journal = {Symmetry, integrability and geometry: methods and applications},
     year = {2012},
     volume = {8},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SIGMA_2012_8_a88/}
}