This author has not been identified. Look up 'Alla P. Toropova' in GoogleThis author has not been identified. Look up 'Andrey A. Toropov' in GoogleThis author has not been identified. Look up 'A. Lombardo' in GoogleThis author has not been identified. Look up 'Alessandra Roncaglioni' in GoogleThis author has not been identified. Look up 'Emilio Benfenati' in GoogleThis author has not been identified. Look up 'Giuseppina C. Gini' in Google