@article{1181075461,
author = {Co\c skun, Haskiz},
title = {On the Spectrum of a Second-Order Periodic Differential Equation},
journal = {Rocky Mountain J. Math.},
volume = {33},
number = {3},
year = {2003},
pages = { 1261-1277},
language = {en},
url = {http://dml.mathdoc.fr/item/1181075461}
}
Coşkun, Haskiz. On the Spectrum of a Second-Order Periodic Differential Equation. Rocky Mountain J. Math., Tome 33 (2003) no. 3, pp. 1261-1277. http://gdmltest.u-ga.fr/item/1181075461/