@article{1255454995,
author = {Boas, R. P.},
title = {A variational method for trigonometric polynomials},
journal = {Illinois J. Math.},
volume = {3},
number = {1},
year = {1959},
pages = { 1-10},
language = {en},
url = {http://dml.mathdoc.fr/item/1255454995}
}
Boas, R. P. A variational method for trigonometric polynomials. Illinois J. Math., Tome 3 (1959) no. 1, pp. 1-10. http://gdmltest.u-ga.fr/item/1255454995/