@article{MZM_1973_13_1_a7,
     author = {\`E. Mukhamadiev and B. N. Sadovskii},
     title = {An estimate for the spectral radius of an operator associated with an equation of neutral type},
     journal = {Matemati\v{c}eskie zametki},
     pages = {67--78},
     publisher = {mathdoc},
     volume = {13},
     number = {1},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1973_13_1_a7/}
}