@article{VMUMM_1994_1_a17,
     author = {I. V. Verbovskii},
     title = {Cocommutative {Hopf} $\mathbf{Z}$-algebras},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {88--90},
     publisher = {mathdoc},
     number = {1},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1994_1_a17/}
}