Nuclear Magnetic Resonance and High Resolution Powder Diffraction Study of a 1212 Superconductors / S. G. Titova, D. O. Shorikov, V. F. Balakirev [et al.] // IV Bilateral Russian - German Symposium on "Physics and chemistry of novel materials" : Joint Program for scientific collaboration between Russian Academy of Sciences and Deutsche Forschungsgemeinschaft, February 24 - March 1, 1999, Ekaterinburg. - Ekaterinburg, 1999. - P. 3.11-P. 3.11.