Study of chromites YbMIICr2O5,5 (MII - Mg, Ca, Sr, Ba) by X-ray diffraction - Kasenov, B.; Mustafin, E.; Bekturganova, A.; Kasenova, Sh.; Sagintaeva, J.; Davrenbekov, S.; Abildaeva, A. (Chemical Bulletin of Kazakh National University, 2012)