@Article{npg-10-75-2003,
AUTHOR = {Guio, P. and B{\o}rve, S. and Daldorff, L. K. S. and Lynov, J. P. and Michelsen, P. and P\'ecseli, H. L. and Juul Rasmussen, J. and Saeki, K. and Trulsen, J.},
TITLE = {Phase space vortices in collisionless plasmas},
JOURNAL = {Nonlinear Processes  in Geophysics},
VOLUME = {10},
YEAR = {2003},
NUMBER = {1/2},
PAGES = {75--86},
URL = {http://www.nonlin-processes-geophys.net/10/75/2003/},
DOI = {10.5194/npg-10-75-2003}
}