Nestedness in mutualistic networks emerges from a modified rule of preferential attachment
arXiv:q-bio/0605026
Abstract
Replacement of papers q-bio/0605026 and q-bio/0607043 by a single manuscript (q-bio/0701029) follows suggestions from a magazine's referee
This paper, together with paper q-bio/0607043 are replaced by q-bio/0607043