Structural features, magnetic and resistive properties of nanopowder lanthanum–strontium manganites fabricated by sol–gel technology - V. A. Turchenko; V. P. Pashchenko; A. V. Pashchenko; Ju. F. Revenko; Ja. Sycheva; V. A. Glazunova; Z. F. Kravchenko (Nanosystems, nanomaterials, nanotechnologies, 2012)