Program sfrweab | Riemannian Wavefield Extrapolation: a,b coefficients 
[SYNOPSIS]
sfrweab < Fi.rsf slo=Fs.rsf > Fo.rsf abr=Fr.rsf verb=n naref=1 nbref=1 peps=0.01
[PARAMETERS]
file    | abr | = |   | 	auxiliary output file name
int     | naref | =1 |   | 	
int     | nbref | =1 |   | 	
float   | peps | =0.01 |   | 	
file    | slo | = |   | 	auxiliary input file name
bool    | verb | =n |  [y/n] | 	
[DIRECTORY]
system/seismic
