@article{MS2_1975__37_166441,
     author = {Jack Ohm},
     title = {An axiomatic approach to homological dimension.},
     journal = {Mathematica Scandinavica},
     pages = {197--222},
     publisher = {mathdoc},
     volume = {37},
     year = {1975},
     zbl = {0319.18009},
     url = {http://geodesic.mathdoc.fr/item/MS2_1975__37_166441/}
}