Shamsuddin, S Effect of Er substitution on ultrasonic anomaly in Dy(0.5-x)Er(x)Ba(0.5)CoO3 cobaltates. [electronic resource] - Ultrasonics Aug 2013 - 1084-8 p. digital Publication Type: Journal Article ISSN: 1874-9968 Standard No.: 10.1016/j.ultras.2013.02.002 doi