@article{escidoc:0374, title = {{Ubiquity of ferromagnetic signals in common diamagnetic oxide crystals}}, author = {Khalid, M. and Setzer, A. and Ziese, M. and Esquinazi, P. and Spemann, D. and P\"oppl, A. and Goering, E.}, journal = {{Physical Review B}}, volume = {81}, number = {21}, year = {2010}, doi = {10.1103/PhysRevB.81.214414} }