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Virosztek Dániel: Maps on probability measures preserving certain distances - a survey and some new results. In: Acta scientiarum mathematicarum, (84) 1-2. pp. 65-80. (2018)
Petz Dénes; Virosztek Dániel: A characterization theorem for matrix variances. In: Acta scientiarum mathematicarum, (80) 3-4. pp. 681-687. (2014)