@article{10_1017_S0017089521000070,
     author = {ARGUD\'IN-MONROY, ALEJANDRO},
     title = {THE {YONEDA} {EXT} {AND} {ARBITRARY} {COPRODUCTS} {IN} {ABELIAN} {CATEGORIES}},
     journal = {Glasgow mathematical journal},
     pages = {277--291},
     year = {2022},
     volume = {64},
     number = {2},
     doi = {10.1017/S0017089521000070},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089521000070/}
}