@article{VMUMM_1989_4_a25,
     author = {M{\cyro}hamed El-Saoudy Fakhry and A. D. Solov'ev},
     title = {Redundancy with recoveries and unreliable switches},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {86--88},
     publisher = {mathdoc},
     number = {4},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1989_4_a25/}
}