@article{VMUMM_1982_4_a3,
     author = {M. M. Zarichnyi},
     title = {The functor $\lambda_n$ and absolute retracts},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {15--19},
     publisher = {mathdoc},
     number = {4},
     year = {1982},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1982_4_a3/}
}