E 6,7,8 magnetized extra-dimensional models Kang-Sin Choi, Tatsuo Kobayashi, Ryosuke Maruyama, Masaki Murata, Yuichiro Nakai, Hiroshi Ohki and Manabu Sakai Eur. Phys. J. C, 67 1-2 (2010) 273-282 Published online: 02 March 2010 DOI: 10.1140/epjc/s10052-010-1275-9