@article{10_4064_fm174_1_1, author = {Saharon Shelah and Pauli Vaisanen}, title = {On equivalence relations second order definable over $H(\kappa)$}, journal = {Fundamenta Mathematicae}, pages = {1--21}, publisher = {mathdoc}, volume = {174}, number = {1}, year = {2002}, doi = {10.4064/fm174-1-1}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.4064/fm174-1-1/} }