1. ISO/IEC (2004). ISO/IEC 1539-1:2004(E) Information technology -- Programming languages -- Fortran -- Part 1: Base language. ISO Geneva. ISO/IEC (2004). ISO/IEC 1539-1:2004(E) Information technology -- Programming languages -- Fortran -- Part 1: Base language. ISO Geneva.
2. ISO/IEC (2010). ISO/IEC 1539-1:2010(E) Information technology -- Programming languages -- Fortran -- Part 1: Base language. ISO Geneva. ISO/IEC (2010). ISO/IEC 1539-1:2010(E) Information technology -- Programming languages -- Fortran -- Part 1: Base language. ISO Geneva.
3. ISO/IEC (2012). ISO/IEC TS 29113 Information technology -- Further interoperability of Fortran with C. ISO Geneva. ISO/IEC (2012). ISO/IEC TS 29113 Information technology -- Further interoperability of Fortran with C. ISO Geneva.
4. Metcalf Michael Reid John and Cohen Malcolm (2011). Modern Fortran Explained. Oxford University Press. Metcalf Michael Reid John and Cohen Malcolm (2011). Modern Fortran Explained. Oxford University Press.