extrapolation BC

Dear friends
I need some paper about extrapolation method for boundary conditions in lattice Boltzmann method,but i cant found it,
or access it,
can u help me?
thanks alot
some paper that i searched but has not accessable for me!
1-An extrapolation method for boundary conditions in lattice Boltzmann method
Authors:
Zhaoli Guo and Chuguang Zheng
Phys. Fluids 14, 2007 (2002); DOI:10.1063/1.1471914
Published 6 May 2002
2-Non-equilibrium extrapolation method for velocity and pressure boundary conditions in the lattice Boltzmann method
Authors:
Guo, Zhao-Li; Zheng, Chu-Guang; Shi, Bao-Chang

best regard
ehsan

How can i give these papers for you ?
email or something is ok ?

hi
can u send it for me in email?

ehsan_64_200@yahoo.com
thank you very very much

best regard
ehsan