@article{ZNSL_2015_439_a12,
     author = {L. Yu. Kolotilina},
     title = {Bounds on the $l_\infty$ norm of inverses for certain block matrices},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {145--158},
     publisher = {mathdoc},
     volume = {439},
     year = {2015},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2015_439_a12/}
}