@article{ZNSL_2001_280_a6,
     author = {N. M. Gulevich and O. N. Gulevich},
     title = {An estimate for the measure of nonconvexity in the $L^p$-space},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {141--145},
     publisher = {mathdoc},
     volume = {280},
     year = {2001},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2001_280_a6/}
}