I am in need of articles involving reed

articles involving reed

hi all,
i dunno where should i put this request, but i think it does relates to RF somehow. i'm actually looking for these article:

I. Chlamtac and A. Farago, “Making Transmission Schedules Immune to Topology Changes in
Multi-Hop Packet Radio Networks”

D. V. Sarwate, “Reed-Solomon Codes and the Design of Sequences for Spread-Spectrum Multiple
Access Communications”

G. Solomon, “Optimal Frequency Hopping Sequences for Multiple Access”

i've tried to search for them through the internet but failed. all the links were giving me a site that required a credit card (i don't have one 8O )

if there's anybody that's so kind to help lending him/ her credit card so that i could access the documents, please don't hesitate to email me ASAP but i do really appreciate anybody could to just tell me the link/ where to download the articles; i don't like the hassle of filling the numbers :roll:

thanks a lot