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The Canadian Underground and Measured Economies: Granger Causality Results
Giles, David E.A., (2002)
Output and well-being in industrialized nations in the second half of the 20th century: testing for convergence using fuzzy clustering analysis
Giles, David E.A., (2005)
A fuzzy logic approach to modelling the New Zealand underground economy
Draeseke, Robert, (2002)