RADWAN, A.E. 1997. ALFVEN SURFACE WAVES ALONG ANNULAR GAS JET SURROUNDING TAR COLUMN UNDER OBLIQUE VARYING MAGNETIC FIELD. Tamkang Journal of Mathematics. 28, 2 (Jun. 1997), 127–133. DOI:https://doi.org/10.5556/j.tkjm.28.1997.4326.