Barra, A. L. High Magnetic Field Laboratory, Former Departments, Max Planck Institute for Solid State Research, Max Planck Society;
Engalytcheff, A., Kolberg, M., Barra, A. L., Andersson, K. K., & Tilquin, B. (2004). The use of multi-frequency EPR techniques to identify the radicals produced in irradiated beta-blockers. Free Radical Research, 38(1), 59-66.