Leitl M , Pfitzner A , Bindi L , Mineralogical Magazine , 73 (2009) p.17-26, Preferred ion diffusion pathways and activation energies for Ag in the, crystal structure of stephanite, Ag5SbS4, Locality: Freiberg District, Saxony, Germany, Note: y-coordinate of Sb altered by Bindi, June 2009