After a stay of 3.5 years in Berlin , she went to Milan , Italy , where she studied singing with Professor Gerli .
After a stay of 3.5 years in Berlin , she visited the classes of the older Lamperti .
After a stay of 3.5 years in Berlin , she went to Milan , Italy , where she studied singing with Professor Gerli , and visited the classes of the older Lamperti .