From Brownian motion to self-avoiding walks and Lévy flights Christian von Ferber, Yurij Holovatch, Ihor Mryglod and Gleb Oshanin Eur. Phys. J. Special Topics, 216 (2013) 1-2 Published online: 31 January 2013 DOI: 10.1140/epjst/e2013-01723-5