@article{SIGMA_2011_7_a14,
     author = {Evgeny A. Ivanov},
     title = {Harmonic {Superfields} in $\mathcal N=4$ {Supersymmetric} {Quantum} {Mechanics}},
     journal = {Symmetry, integrability and geometry: methods and applications},
     year = {2011},
     volume = {7},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SIGMA_2011_7_a14/}
}