Dynamics of dust structures in a dc discharge under action of axial magnetic fieldM. M. Vasiliev, L. G. D'yachkov, S. N. Antipov, R. Huijink, O. F. Petrov and V. E. FortovEPL, 93 1 (2011) 15001DOI: https://doi.org/10.1209/0295-5075/93/15001