Dark matter, density perturbations and structure formation
  This paper provides a review of the variants of dark matter (CDM, HDM) which are thought to be fundamental components of the universe and their role in origin and evolution of structures. 
A. Del Popolo (1,2,3) ((1) Dipartimento di Matematica, Universita'   Statale di Bergamo, ITALY; (2) Feza Gursey Institute, I...