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2. Free algebras and automata realizations in the language of categories;Adámek;Comment. Math. Univ. Carolinae,1974
3. Abstract and Concrete Categories;Adámek,1990
4. On the greatest fixed point of a functor;Adámek;Theor. Comp. Science,1995
5. Locally Presentable and Accessible Categories;Adámek,1994