@article{escidoc:1575694, title = {Direct measurement of critical Casimir forces}, author = {Hertlein, C. and Helden, L. and Gambassi, A. and Dietrich, S. and Bechinger, C.}, journal = {Nature}, volume = {451}, number = {7175}, pages = {172--175}, year = {2008}, doi = {10.1038/nature06443} }