@article{TAC_2005_14_a7,
     author = {Jiri Adamek},
     title = {Introduction to coalgebra},
     journal = {Theory and applications of categories},
     pages = {157--199},
     publisher = {mathdoc},
     volume = {14},
     year = {2005},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TAC_2005_14_a7/}
}