On the electronic structure of CaCuO2 and SrCuO2
  Recent electronic structure calculations for the prototypical lowdimensional cuprate compounds CaCuO2 ans SrCuO2 performed by Wu et. al. (J. Phys.: Condens. Matter v. 11 p.4637 (1999))are critically reconsidered, applying high precision full-potential bandstructure methods. It is shown that the bandstructure calculations presented by the authors contain several important inconsistencies, which make their main conclusions highly questionable. 
H. Rosner, M. Divis, K. Koepernik, S.-L. Drechsler and H. Eschrig