Investigation of continuous-time quantum walk by using Krylov subspace-Lanczos algorithmM. A. Jafarizadeh, R. Sufiani, S. Salimi and S. JafarizadehEur. Phys. J. B, 59 2 (2007) 199-216DOI: https://doi.org/10.1140/epjb/e2007-00281-5