A PERMANENT MAGNET UNDULATOR FOR FREE ELECTRON LASER C. Bazin, J. M. Ortega, D. A.G. Deacon, C. Depautex et P. ElleaumeJ. Phys. Colloques, 45 C1 (1984) C1-317-C1-319DOI: https://doi.org/10.1051/jphyscol:1984164
