Wirth N. Program Development by Stepwise Refinement

Wirth N. Program Development by Stepwise Refinement, 01.1971 (pdf копия)

Wirth N. Program Development by Stepwise Refinement, Communications of the ACM 04.1971, с. 221-227 (копия)

Wirth N. Program Development by Stepwise Refinement, Communications of the ACM, Vol. 14 (4), 1971, pp. 221-227 — Original Historic Documents, с. 149-169

Паскаль