Please I need these papers

1) Narrow band compact non-degenerate dual-mode microstrip filter

Sheta, A.F.
National Radio Science Conference, 2008. NRSC 2008
Volume , Issue , 18-20 March 2008 Page(s):1 - 7
Digital Object Identifier 10.1109/NRSC.2008.4542317

2) Compact hexagonal open-loop resonator bandpass filters using capacitive side-coupled stub and spurline technique

Liu, H.; Li, W.; Yang, Y.
Electronics Letters
Volume 44, Issue 19, September 11 2008 Page(s):1138 - 1140
Digital Object Identifier 10.1049/el:20081920

here they are!