The original version of the article was published in Central European Journal of Mathematics, 2008, 6(2), 191–203, DOI: 10.2478/s11533-008-0026-8. Unfortunately, the original version of this article contains a mistake, which we correct here.
@article{bwmeta1.element.doi-10_2478_s11533-009-0011-x, author = {Roger Bielawski}, title = {Erratum to ``Curvature of hyperk\"ahler quotients''}, journal = {Open Mathematics}, volume = {7}, year = {2009}, pages = {363-363}, zbl = {1180.53050}, language = {en}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.doi-10_2478_s11533-009-0011-x} }
Roger Bielawski. Erratum to “Curvature of hyperkähler quotients”. Open Mathematics, Tome 7 (2009) p. 363. http://gdmltest.u-ga.fr/item/bwmeta1.element.doi-10_2478_s11533-009-0011-x/