%0 Journal Article %A Mikhail B. Sheftel %A Devrim Yazici %T Recursion Operators and Tri-Hamiltonian Structure of the First Heavenly Equation of PlebaƄski %J Symmetry, integrability and geometry: methods and applications %D 2016 %V 12 %U http://geodesic.mathdoc.fr/item/SIGMA_2016_12_a90/ %G en %F SIGMA_2016_12_a90