@article{10_5427_jsing_2012_6m, author = {\.Zaneta Tr\k{e}bska}, title = {Symplectic {W_8} and {W_9} singularities}, journal = {Journal of Singularities}, pages = {158--178}, publisher = {mathdoc}, volume = {6}, year = {2012}, doi = {10.5427/jsing.2012.6m}, url = {http://geodesic.mathdoc.fr/articles/10.5427/jsing.2012.6m/} }