Ivan Dalla Tana Drawing: A Contemporary ApproachIvan Dalla Tana Drawing: A Contemporary Approachhttps://books.google.it/books?id=6GCnEZZbOEgC&pg=PA17&lpg=PA17&dq=ivan+dalla+tana&source=bl&ots=iH_O_6vY6O&sig=28clc5nRPWbYxzFj8HWuH7J1vBA&hl=it&sa=X&ei=pvdAUY-PM8zT4QSzyICoBA&ved=0CFAQ6AEwBTgU#v=onepage&q=ivan%20dalla%20tana&f=false SalvaSalva
