Stéphane Ethier William M. Tang Robert Walkup Leonid Oliker Large-scale gyrokinetic particle simulation of microturbulence in magnetically confined fusion plasmas. 105-116 2008 52 IBM Journal of Research and Development 1-2 http://dx.doi.org/10.1147/rd.521.0105 db/journals/ibmrd/ibmrd52.html#EthierTWO08