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The cover picture showsthe projection of crystal structures of La- Ce- and Pr- Carbide Chlorides/Bromides with Ln-octahedra centered by C2 dumbbells. Such Ln6(C2)-octahedra are condensed into chains jointed to undulated sheets. Up (+) and down () inclined ribbons alternate in variation modulo 44+, 43+34+, 45+, 54+45+44+. More details are discussed in the Article by Hj. Mattausch and A. Simon on pp. 1093 ff.