@article{ZNSL_2005_321_a6,
     author = {M. B. Zvyagina},
     title = {On projective and injective objects of the categories dual to~$\mathfrak{AB}$},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {168--182},
     publisher = {mathdoc},
     volume = {321},
     year = {2005},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2005_321_a6/}
}