Magnetic-field switchable metal-insulator transitions in a quasihelical conductor

B.B. acknowledges the support by the EU-FP7 Project SE2ND [271554]. A.S. acknowledges the support by the Swedish research council,Grant No. 621-2011-3942. G.I.J. acknowledges the support by the Georgian NSF Grant No. ST09/4-447 and by the SCOPES Grant No. IZ73Z0-128058