Magneto-transport in a quantum network: evidence of a mesoscopic switch Srilekha Saha, Santanu K. Maiti and S.N. Karmakar Eur. Phys. J. B, 85 8 (2012) 283 Published online: 13 August 2012 DOI: 10.1140/epjb/e2012-30163-6