- https://gcc.gnu.org/wiki/GFortranStandards
- Fortran - Automatic Coding System for the IBM 704
- Fortran 66
- Fortran 77
- Fortran 90
- Fortran 95
- Fortran 2003
- Fortran 2008
- TS 29113 Further Interoperability of Fortran with C
- TS 18508 Additional Parallel Features in Fortran
- Fortran 2018
- Fortran 202x