@unpublished{TUW-223600, author = {Monti, Gianna and Hron, Karel and Filzmoser, Peter and Templ, Matthias}, title = {Covariance-Based Outlier Detection for Compositional Data with Structural Zeros: Application to Italian Survey of Household Income and Wealth Data}, year = {2013}, keywords = {structural zeros; missing value imputation; Aitchison geometry on the simplex; Mahalanobis distance; variation matrix}, note = {talk: SIS 2013 - Advances in Latent Variables - Methods, Models and Applications, Brescia, Italy; 2013-06-21} }