@inbook{inbook3aa792ee,
title   = {On Richardson's model on the hypercube},
author = {Bollobás, Béla and Kohayakawa, Yoshiharu},
year = {1997},
doi = {10.1017/CBO9780511662034.015},
publisher = {Cambridge University Press},
journal   = {Combinatorics, geometry and probability : a tribute to Paul Erdos}
}