1. On a generalized small-object argument for the injectivity subcategory problem;Adámek;Cah. Topol. Géom Différ. Catég.,2002
2. Locally Presentable and Accessible Categories;Adámek,1994
3. Categoricity;Baldwin,2009
4. Set Theory;Jech,1978
5. J. Kirby, Abstract elementary categories, preprint, 2008.