@article{escidoc:0682, title = {{Effective exchange interaction in a quasi-two-dimensional self-assembled nanoparticle array}}, author = {Wiedwald, U. and Cerchez, M. and Farle, M. and Fauth, K. and Sch\"utz, G. and Z\"urn, K. and Boyen, H.-G. and Ziemann, P.}, journal = {{Physical Review B}}, volume = {70}, year = {2004}, doi = {10.1103/PhysRevB.70.214412} }