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@unpublished{TUW-223600,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}
}