%0 Journal Article %A Pieter Roffelsen %T Irrationality of the Roots of the Yablonskii–Vorob'ev Polynomials and Relations between Them %J Symmetry, integrability and geometry: methods and applications %D 2010 %V 6 %U http://geodesic.mathdoc.fr/item/SIGMA_2010_6_a94/ %G en %F SIGMA_2010_6_a94