@article{SIGMA_2012_8_a98,
     author = {Pieter Roffelsen},
     title = {On the {Number} of {Real} {Roots} of the {Yablonskii{\textendash}Vorob'ev} {Polynomials}},
     journal = {Symmetry, integrability and geometry: methods and applications},
     year = {2012},
     volume = {8},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SIGMA_2012_8_a98/}
}