Program sfkron | Kroneker product with square matrices 
[SYNOPSIS]
sfkron < in.rsf > out.rsf mat1=mat1.rsf mat2=mat2.rsf adj=n inv=n niter=100 eps=0. nliter=1
[PARAMETERS]
bool    | adj | =n |  [y/n] | 	adjoint flag 
float   | eps | =0. |   | 	regularization 
bool    | inv | =n |  [y/n] | 	inversion flag 
file    | mat1 | = |   | 	auxiliary input file name
file    | mat2 | = |   | 	auxiliary input file name
int     | niter | =100 |   | 	maximum number of iterations 
int     | nliter | =1 |   | 	number of nonlinear iterations 
[DIRECTORY]
user/fomels
