@article{1183745816, author = {Barwise, Jon and van Benthem, Johan}, title = {Interpolation, Preservation, and Pebble Games}, journal = {J. Symbolic Logic}, volume = {64}, number = {1}, year = {1999}, pages = { 881-903}, language = {en}, url = {http://dml.mathdoc.fr/item/1183745816} }
Barwise, Jon; van Benthem, Johan. Interpolation, Preservation, and Pebble Games. J. Symbolic Logic, Tome 64 (1999) no. 1, pp. 881-903. http://gdmltest.u-ga.fr/item/1183745816/