@article{SIGMA_2007_3_a9,
     author = {Brian P. Dolan},
     title = {Modular {Symmetry} and {Fractional} {Charges} in $\mathcal N=2$ {Supersymmetric} {Yang{\textendash}Mills} and the {Quantum}},
     journal = {Symmetry, integrability and geometry: methods and applications},
     year = {2007},
     volume = {3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SIGMA_2007_3_a9/}
}