Geodesic
Universal central extensions of groups of special automorphisms of free groups
Matematičeskie zametki, Tome 47 (1990) no. 4, pp. 46-54.

Voir la notice de l'article provenant de la source Math-Net.Ru

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     author = {E. Ya. Markushina},
     title = {Universal central extensions of groups of special automorphisms of free groups},
     journal = {Matemati\v{c}eskie zametki},
     pages = {46--54},
     publisher = {mathdoc},
     volume = {47},
     number = {4},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1990_47_4_a6/}
}
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E. Ya. Markushina. Universal central extensions of groups of special automorphisms of free groups. Matematičeskie zametki, Tome 47 (1990) no. 4, pp. 46-54. http://geodesic.mathdoc.fr/item/MZM_1990_47_4_a6/