Symbolic dynamics for circle maps / by Jan BarkmeijerDynamics and topological invariants of circle endomorphisms / Jan BarkmeijerApproximating dominant eigenvalues and eigenvectors of the local forecast error corariance matrix / J. BarkmeijerConstructing fast-growing perturbations for the nonlinear regime / Jan BarkmeijerPeriodic attractors as a result of diffusion / by Jan BarkmeijerThe speed interval of maps of the circle / by Jan Barkmeijer