Perakis, Michael; Maravelakis, Petros; Psarakis, Stelios; Xekalaki, Evdokia and Panaretos, John (2001): On Certain Indices for Ordinal Data with Unequally Weighted Classes. Published in: Athens University of Economics and Business, Statistics Technical Report No. 161 (2001)
Perakis, Michael; Maravelakis, Petros; Psarakis, Stelios; Xekalaki, Evdokia and Panaretos, John (2005): On Certain Indices for Ordinal Data with Unequally Weighted Classes. Published in: Quality and Quantity , Vol. 39, No. 5 (2005): pp. 515-536.
Maravelakis, Petros; Perakis, Michael; Psarakis, Stelios and Panaretos, John (2003): The Use of Indices in Surveys. Published in: Quality & Quantity , Vol. 37, No. 1 (2003): pp. 1-19.
