http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Giáo trình Linux và phần mềm nguồn mở
Giáo trình giới thiệu về khám phá tri thức và khai thác dữ liệu; quản trị hệ thống GNU/LINUX; bộ lọc và SED/AWK; phát triển ứng dụng với công cụ GNU.