@article{PORMA_1967__26_1_115002,
     author = {Hanna, A.},
     title = {On the derived functors of the inverse limit},
     journal = {Portugaliae mathematica},
     pages = {63--70},
     year = {1967},
     volume = {26},
     number = {1},
     mrnumber = {0258920},
     zbl = {0189.30001},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1967__26_1_115002/}
}