http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
In lần thứ 4, có sửa chữa, bổ sung
Nội dung tài liệu gồm các bài tập về dao động tuyến tính của hệ một bậc tự do, hệ hữu hạn bậc tự do và hệ vô hạn bậc tự do và tính toán dao động bằng các hệ chương trình MAPLE, MATLAB và MATHCAD