@article{SIGMA_2010_6_a14,
     author = {Kwang C. Shin},
     title = {Anharmonic {Oscillators} with {Infinitely} {Many} {Real} {Eigenvalues} and $\mathcal{PT}${-Symmetry}},
     journal = {Symmetry, integrability and geometry: methods and applications},
     year = {2010},
     volume = {6},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SIGMA_2010_6_a14/}
}