"A.A. Belik,F. Izumi,M. Azuma,T. Kamiyama,Oikawa K.,Pokholok K.V.,B.I. Lazoryak,M. Takano","Redox Reactions in Strontium Iron Phosphates: Synthesis, Structures, and Characterization of Sr9Fe(PO4)7 and Sr9FeD(PO4)7",,"Chem. Mater.",,"Vol. 17","No. 22","pp. 5455-5464",2005,
"Stefanovich S.Y.,A.A. Belik,M. Azuma,M. Takano,Baryshnikova O.V.,Morozov V.A.,Lazoryak B.I.,Levedev O.I.,Tendeloo G.V.","Antiferroelectric Phase Transition in Sr9In(PO4)7",,"Phys. Rev. B",,"Vol. 70","No. 17","pp. 172103-1-172103-4",2004,