Barra, A. L. High Magnetic Field Laboratory, Former Departments, Max Planck Institute for Solid State Research, Max Planck Society;
Pilawa, B., Kelemen, M. T., Wanka, S., Geisselmann, A., & Barra, A. L. (1998). Magnetic properties of a new spin cluster topology with high spin ground state: the spin cluster [MnII4MnIII3(teaH)3(tea)3](ClO4)2.3MeOH. Europhysics Letters, 43, 7-12.