@article{ZNSL_1973_35_a9,
     author = {S. G. Mikhlin},
     title = {Approximation on a~radial-annular net},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {95--102},
     year = {1973},
     volume = {35},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1973_35_a9/}
}