@article{SLC_1992_29_a6,
     author = {M. Kuzma and B. Lulek},
     title = {The {Mac} {Lane} {Method} of {Construction} and {Classification} of {Extensions} of {Cyclic} {Groups} by {Their} {Automorphism} {Groups}},
     journal = {S\'eminaire lotharingien de combinatoire},
     year = {1992},
     volume = {29},
     url = {http://geodesic.mathdoc.fr/item/SLC_1992_29_a6/}
}