@article {8619,
	title = {Observation of intermediate spin states in Er/Y superlattices},
	journal = {Journal of Applied Physics},
	year = {1990},
	pages = {5710-5712},
	doi = {10.1063/1.345938},
	author = {R.S. Beach and J.A. Borchers and M.B. Salamon and R. Du and C.P. Flynn}
}
