Monopoly (pdf)

Quadrature 19 (1994), p. 43-46.

Rank and complexity (pdf)

Ergodic Th. Dyn. Syst. 16 (1996), p. 663-682.

Eigenvalues of substitutions (pdf)

Ann. Sci. Ec. Norm. Sup., 4e serie, 29, 4 (1996), p. 519-533.

Survey on finite rank (pdf)

Colloq. Math. 73 (1997), p. 35-65.

Measure-theoretic complexity (pdf)

Israël J. of Math. 100 (1997), p. 189-207.

Survey on complexity (pdf)

Discrete Math. 206 (1999), p. 145-154.