Derivation of the magnetization current from the non-relativistic Pauli   equation: A comment on "The quantum mechanical current of the Pauli equation"   by Marek Nowakowski [Am.J.Phys.67(10), 916-919 (1999)]
  The magnetization current that appears in the non-relativistic limit of the Dirac equation is derived starting from the Pauli equation. 
M. S. Shikakhwa, S. Turgut, N. K. Pak
quant-ph