Antonov, V. N., Harmon, B. N., & Yaresko, A. N. (2003). Electronic structure and x-ray magnetic circular dichroism in Fe3O4 and Mn-, Co-, or Ni-substituted Fe3O4. Physical Review B, 67(2), 024417-1-024417-14. doi:10.1103/PhysRevB.67.024417.