Influence of oxygen vacancies on the magnetic and electrical properties of La1-xSrxMnO3-x/2 manganites
S. V. Trukhanov, L. S. Lobanovski, M. V. Bushinsky, V. A. Khomchenko, N. V. Pushkarev, I. O. Troyanchuk, A. Maignan, D. Flahaut, H. Szymczak and R. Szymczak