[[http://web.stanford.edu/class/me200c/tutorial_77/ | Tutorial Fortran 77 Stanford]]
({{ :wikipaom2017:tutorial_fortran77_stanford.pdf | versione pdf}})

''enddo'' introdotto da [[http://www.fortran.com/mil_std_1753.html|MILITARY STANDARD 1753]] del 1978


Per approfondimenti: 
  * [[http://www.star.le.ac.uk/~cgp/prof77.html|Clive G. Page, Professional Programmer's Guide to Fortran77]] ([[http://www.star.le.ac.uk/~cgp/prof77.pdf|versione pdf]])
  * [[https://www.ibiblio.org/pub/languages/fortran/|USER NOTES ON FORTRAN PROGRAMMING (UNFP)
]](An open cooperative practical guide)