Co5Ho
Velge, W.A.J.J.Buschow, K.H.J.
Journal of Applied Physics (1968) 39, 1717-1720
a=4.881Å b=4.881Å c=4.006Å
α=90° β=90° γ=120°
Co5Dy
a=4.897Å b=4.897Å c=4.007Å