@article{MAT_1960_4_3_a0,
     author = {B. Eckmann and P. Hilton},
     title = {Groupes d'homotopie et dualit\'e. {Groupes} absolus},
     journal = {Matematika},
     pages = {3--28},
     publisher = {mathdoc},
     volume = {4},
     number = {3},
     year = {1960},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MAT_1960_4_3_a0/}
}