Quasistatic magnetic properties and ac energy losses in CoFe2O4 nanoparticles - Ju. O. Tikhonenko-Polishchuk; N. N. Kulik; A. V. Elenich; V. Bečyte; K. Mažeika; V. M. Kalita; A. G. Belous; A. I. Tovstolytkin (Low Temperature Physics, 2016)