@article{1102700212,
author = {Gierz, Gerhard and Shekhtman, Boris},
title = {A duality principle for rational approximation.},
journal = {Pacific J. Math.},
volume = {125},
number = {2},
year = {1986},
pages = { 79-92},
language = {en},
url = {http://dml.mathdoc.fr/item/1102700212}
}
Gierz, Gerhard; Shekhtman, Boris. A duality principle for rational approximation.. Pacific J. Math., Tome 125 (1986) no. 2, pp. 79-92. http://gdmltest.u-ga.fr/item/1102700212/