  Deep surveys indicate a bubbly structure of cosmological large scale which
should be the result of evolution of primordial density perturbations. Several
models have been proposed to explain origin and dynamics of such features but,
till now, no exhaustive and fully consistent theory has been found. We discuss
a model where cosmological black holes, deriving from primordial perturbations,
are the seeds for large-scale-structure voids. We give details of dynamics and
accretion of the system voids-cosmological black holes from the epochs
$(z\simeq10^{3})$ till now finding that void of $40h^{-1}Mpc$ of diameter and
under-density of -0.9 will fits the observations without conflicting with the
homogeneity and isotropy of cosmic microwave background radiation.
