A massive open online course on particle accelerators  by Delerue, N, Biagini, M, Bruenderman, E, Briantais, E, Burrows, P, Burt, G, d'Honincthu, HC, Cianchi, A, Darve, C, Dmitriyeva, V, Faus-Golfe, A, Kapenieks, A, Kvissberg, J, Lebrun, P, Mathevet, G, Metral, E, Mueller, A-S, Moller, SP, Polozov, S, Rinolfi, L, Rutambharai, Y, Schmickler, H, Simonsso, A, Toes, J, Torims, T, Vaccaro, VG, Iop