@article{10_4064_fm195_2_4, author = {Paola D'Aquino and Julia F. Knight}, title = {Strong initial segments of models of $I\Delta_0$}, journal = {Fundamenta Mathematicae}, pages = {155--176}, publisher = {mathdoc}, volume = {195}, number = {2}, year = {2007}, doi = {10.4064/fm195-2-4}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.4064/fm195-2-4/} }