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Econometric methods
Johnston, John, (1972)
Multivariate statistical methods in behavioral research
Bock, Richard Darrell, (1975)
Statistical treatment of experimental data
Young, Hugh D., (1962)
On the construction of multivariate permutation tests in the two-sample case
Putten, Brand van, (1987)
Social key data : monitoring living conditions of the population
Laan, Paul van der, (1993)
The measurement of economic well-being
Laan, Paul van der, (1994)