1. Alvo, M. (1998). On non-parametric measures of correlation for directional data. Environmetrics, 9, 645–656.
2. Alvo, M., & Cabilio, P. (1992). Correlation methods for incomplete rankings. (Technical Report 200) Laboratory for Research in Statistics and Probability: Carleton University and University of Ottawa.
3. Alvo, M., & Cabilio, P. (1993). Tables of critical values of rank tests for trend when the data is incomplete. (Technical Report 230) Laboratory for Research in Statistics and Probability: Carleton University and University of Ottawa.
4. Alvo, M., & Cabilio, P. (1994). Rank test of trend when data are incomplete. Environmetrics, 5, 21–27.
5. Alvo, M., & Cabilio, P. (1995a). Rank correlation methods for missing data. Canadian Journal of Statistics, 23, 345–358.