Exchange bias phenomenon in (Nd1–khYx)2/3Ca1/3MnO3 (x = 0; 0.1) perovskites - E. L. Fertman; A. V. Fedorchenko; A. V. Kotljar; V. A. Desnenko; E. Čižmár; A. Baran; D. D. Khalyavin; A. N. Salak; V. V. Shvartsman; A. Feher (Low Temperature Physics, 2015)