TY - JOUR AU - P. Chithralekha AU - C. Murugeswari AU - K. Ramachandran AU - R. Srinivasan TI - The study on ultrasonic velocities of Co$_x$Fe$_{3-x}$O$_4$ nanoferrofluid prepared by co-precipitation method JO - Nanosistemy: fizika, himiâ, matematika PY - 2016 SP - 558 EP - 560 VL - 7 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/NANO_2016_7_3_a28/ LA - en ID - NANO_2016_7_3_a28 ER -