@article{IM2_1974_8_2_a0,
     author = {L. L. Avramov},
     title = {On~the {Hopf} algebra of~a~local ring},
     journal = {Izvestiya. Mathematics},
     pages = {259--284},
     year = {1974},
     volume = {8},
     number = {2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1974_8_2_a0/}
}