%0 Journal Article %A Elba Garcia-Failde %A Reinier Kramer %A Danilo LewaƄski %A Sergey Shadrin %T Half-Spin Tautological Relations and Faber's Proportionalities of Kappa Classes %J Symmetry, integrability and geometry: methods and applications %D 2019 %V 15 %U http://geodesic.mathdoc.fr/item/SIGMA_2019_15_a79/ %G en %F SIGMA_2019_15_a79