http://books.google.fr/books?id=cLY1z-XLd_IC&printsec=frontcover&dq=battle+for+budapest&source=bl&ots=5-bO4rFMg6&sig=pkqCCRMF1oA0VmDUFlCyOyAbj90&hl=fr&ei=kSSrS6eoMsu24QalvdDjDw&sa=X&oi=book_result&ct=result&resnum=5&ved=0CCoQ6AEwBA#v=onepage&q=&f=false
http://www.amazon.com/Battle-Budapest-Hundred-Days-World/dp/1850436673#noop
Z.