Weak localization in monolayer and bilayer graphene K. Kechedzhi, E. McCann, V. I. Fal'ko, H. Suzuura, T. Ando and B. L. Altshuler Eur. Phys. J. Special Topics, 148 (2007) 39-54 Published online: 25 September 2007 DOI: 10.1140/epjst/e2007-00224-6