@article{TAC_2021_37_a34,
     author = {Ruiyuan Chen},
     title = {On sifted colimits in the presence of pullbacks},
     journal = {Theory and applications of categories},
     pages = {1176--1193},
     publisher = {mathdoc},
     volume = {37},
     year = {2021},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TAC_2021_37_a34/}
}