@article{articleef9d51a2,
title   = {Role of dipolar interactions in a system of Ni nanoparticles studied by magnetic susceptibility measurements},
author = {Masunaga, S H and Jardim, R. F. and Fichtner, Paulo Fernando Papaleo and Rivas, J},
year = {2009},
doi = {10.1103/physrevb.80.184428},
journal   = {Physical Review B}
}