Raul Perez Enriquez A Structural parameter for High Tc Superconductivity from an Octahedral Moebius Strip in RBaCuO: 123 type of perovskite Rev Mex Fis v.48 supplement 1, 2002, p.262 or at here
Rainer Herges (2005-06-28). "Möbius, Escher, Bach – Das unendliche Band in Kunst und Wissenschaft". Naturwissenschaftliche Rundschau. pp. 301–310. ISSN0028-1050. {{cite book}}: |journal= ignored (help)