Does anyone have a copy of this paper and an example of how to use Newmark, N.M. - "Numerical Procedures for Computing Deflections, Moments and Buckling Loads", Transactions ASCE, Vol. 108, 1943
I don't have these materials at this time, but I have used the method in the past and I noted these references. Good luck.
"Numerical Analysis of Beam and Column Structures" by W. G. Godden, Prentice-Hall,1965.
Also, check out "Newmark's Numerical Method" by N. C. Lind, Dept of Civil Engineering, University of Waterloo, Waterloo, Ontario, Canada 1975.
"Numerical Procedure for Computing Deflections,Moments, and Buckling Loads", by Nathan M. Newmark, Paper No 2202, ASCE Transactions, Vol 108, 1943, is Newmark's original paper.