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Structure Investigations of Molecular Crystals Containing the Ring System Cyclo-tris(2,6-pyridylformamidine) by Means of X-ray Powder Diffraction and Force-Field-Constrained Rietveld Refinement

P. Friedel, D. Jehnichen, F. Böhme, 1998 .

Polymers containing formamidine groups, 4. Copolyformamidines prepared from triethyl orthoformate, benzidine and various diamines

D. Jehnichen, H. Komber, F. Böhme, 1995 .