@article{10_2298_PIM0900123S,
     author = {Shah, Tariq and Ullah, Ehsan},
     title = {Factorization properties of subrings in trigonometric polynomial rings.},
     journal = {Publications de l 'Institut Math\'ematique. Nouvelle S\'erie},
     pages = {123},
     publisher = {mathdoc},
     volume = {86(100)},
     year = {2009},
     doi = {10.2298/PIM0900123S},
     zbl = {1221.13001},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/articles/10.2298/PIM0900123S/}
}