urgent requirement of these papers plz help

hi
any 1 have these papers with you plz post here . if any of these papaers are already there in forum means post the link hereplz

thank you in advance

[1] P. Martin and J.B.Ness ?Coupling Bandwidth and Reflected Group Delay Characterisation of Microwave Bandpass Filters?, Applied Microwave and Wireless, May 1999
[2] S. B. Cohn ? Dissipation Loss in Multicoupled Resonator Filters? Proc IRE -47 1957 p 1342
[3] E.G. Cristal ?Capacity Coupling Shortens Combline Filters? Microwaves, Dec 1967, p 44
[4] R Levy, HW Yao and K.A.Zaki ?Transitional Combline /Evanescent Mode Microwave Filters?, IEEE MTT -45 Dec 1997 p2094
[5] B.F. Nicholson, ?The Resonant Frequency of Interdigital Filter Elements?, IEEE MTT-14, May 1966, pp 250 -251.
[6]FDTD analysis of mutual coupling in combline filter design
Xu, J.; van Stigt, N.
Radio and Wireless Conference, 1999. RAWCON 99. 1999 IEEE
Volume , Issue , 1999 Page(s):199 - 202

here are some of the papers you're looking for..

other paper u resquested are on the fowlowing link.
https://www.edaboard.com/viewtopic.php?p=922628#922628
https://www.edaboard.com/viewtopic.php?p=425992#425992

hi
thank you for posting these papers here , those are very essential to me
thanks