@article{IM_1970__10_142018,
     author = {A.H.M. LEVELT},
     title = {Foncteurs exacts \`a gauche. {Une} retification et une simplification},
     journal = {Inventiones mathematicae},
     pages = {1--3},
     publisher = {mathdoc},
     volume = {10},
     year = {1970},
     zbl = {0201.02301},
     url = {http://geodesic.mathdoc.fr/item/IM_1970__10_142018/}
}