Spin-density wave ground state in the one-dimensional conductor (TMTSF) 2PF6: microscopic evidence from 77Se and 1H NMR experiments A. Andrieux, D. Jérome et K. BechgaardJ. Physique Lett., 42 4 (1981) 87-90DOI: https://doi.org/10.1051/jphyslet:0198100420408700