%0 Journal Article %T New Strategies and Simulation Tools to Optically Design a Field of Heliostats %A Paola Sansoni %A Franco Francini %A Daniela Fontani %A Elisa Sani %J International Journal of Photoenergy %D 2013 %I Hindawi Publishing Corporation %R 10.1155/2013/523947 %U http://dx.doi.org/10.1155/2013/523947