1. Dynamic friction models and control design;Candus;Proc. Amer. Contol. Conf,1993
2. On the modelling of coulomb friction;Cull;J. Phys. A: Math.,1999
3. Nonlinear dynamics of oilwell drillstrings;Jansen,1993
4. H∞ Control for suppressing stick slip in oil well drillstrings;Serrarens;IEEE Control systems,1998
5. H∞ control as applied to torsional drillstring dynamics;Serrarens,2002