@article{MMCM_2017_13_a6,
     author = {V. I. Timonin and N. D. Tyannikova},
     title = {Cox model validity checking for several progressively censored samples},
     journal = {Matemati\v{c}eskoe modelirovanie i \v{c}islennye metody},
     pages = {102--117},
     year = {2017},
     number = {13},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MMCM_2017_13_a6/}
}