@misc{bormann_stability_limits_1989, 
author={Bormann, R.,Noelting, J.},
title={Stability limits of the perovskite structure in the Y-Ba-Cu-O system},
year={1989},
howpublished = {journal article},
note = {Online available at: \url{} (DOI). Bormann, R.; Noelting, J.: Stability limits of the perovskite structure in the Y-Ba-Cu-O system. Applied Physics Letters. 1989. vol. 54, 2148.}}