File list (Check if you may need any files):
l1_ls_matlab\l1_ls_matlab\find_lambdamax_l1_ls.m
............\............\find_lambdamax_l1_ls_nonneg.m
............\............\l1_ls.m
............\............\l1_ls_nonneg.m
............\............\l1_ls_usrguide.pdf
............\............\operator_example.m
............\............\README.TXT
............\............\simple_example.m
............\............\@partialDCT\ctranspose.m
............\............\...........\mtimes.m
............\............\...........\partialDCT.m
............\............\@partialDCT
............\l1_ls_matlab
l1_ls_matlab