Characterization of void space in polydisperse sphere packings: Applications to hard-sphere packings and to protein structure analysisMoumita Maiti, Arun Lakshminarayanan and Srikanth SastryEur. Phys. J. E, 36 1 (2013) 5DOI: https://doi.org/10.1140/epje/i2013-13005-4