@article{MZM_1991_49_5_a9,
     author = {V. L. Mikheev},
     title = {Ideals in isols containing a set of regressive isols},
     journal = {Matemati\v{c}eskie zametki},
     pages = {70--79},
     publisher = {mathdoc},
     volume = {49},
     number = {5},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1991_49_5_a9/}
}