1. A simple method for constructing price indices for seasonal commodities;Balk;Statistische Hefte,1981
2. On the use of unit value indices as consumer price subindices;Balk,1998
3. Bradley, R., Cook, B., Leaver, S.G., Moulton, B.R., 1997. An overview of research on potential uses of scanner data in the US. CPI. In: Paper Presented at the International Conference on Price Indices. Voorburg.
4. Multilateral comparisons of output, input, and productivity using superlative index numbers;Caves;Economic Journal,1982
5. Computing elementary aggregates in the Swedish consumer price index;Dalen;Journal of Official Statistics,1992