Magnetic field tuned transition of aharonov-bohm oscillations from hc / e to hc/2e periodicity in the array of 'AL''GA''AS' / 'GA''AS' rings - Gusev, Guennadii Michailovich; Basmaji, Pierre; Lubyshev, D I; Portal, J C; Litvin, L V; Nastaushev, Y V; Toropov, A I (Brazilian Journal of Physics, 1994)