@article{10_1017_S0017089500030366,
     author = {Teply, Mark L.},
     title = {On the idempotence and stability of kernel functors},
     journal = {Glasgow mathematical journal},
     pages = {37--43},
     year = {1995},
     volume = {37},
     number = {1},
     doi = {10.1017/S0017089500030366},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500030366/}
}