Oscillations and secondary bifurcations in nonlinear magnetoconvection Rucklidge, A. M. ; Weiss, N. O. ; Brownjohn, D. P. ; Proctor, M. R. E. Abstract Publication: Geophysical and Astrophysical Fluid Dynamics Pub Date: February 1993 DOI: 10.1080/03091929308203565 Bibcode: 1993GApFD..68..133R