The following files appear in only slightly differing versions in both
rus01b01.eci and rus01c01.eci:

har.txt.eci
in_ref.txt.eci
mod_ref.txt.eci
nasast.sts.eci
rec1.txt.eci
rec1t.txt.eci
rec2.txt.eci
redst.rec.eci
redst.txt.eci
redst2.rec.eci
tes.txt.eci
tesis.txt.eci
works.txt.eci

The originals appear only under original/DIS.
