GEWALD, K., HERTEL, D. and WITT, J.. "COLUMBUS – Strukturierte Programmierung in der Praxis / COLUMBUS – Structured Programming in Practice"
it - Information Technology, vol. 19, no. 1-6, 1977, pp. 30-34.
https://doi.org/10.1524/itit.1977.19.16.30
GEWALD, K., HERTEL, D. & WITT, J. (1977). COLUMBUS – Strukturierte Programmierung in der Praxis / COLUMBUS – Structured Programming in Practice.
it - Information Technology,
19(1-6), 30-34.
https://doi.org/10.1524/itit.1977.19.16.30
GEWALD, K., HERTEL, D. and WITT, J. (1977) COLUMBUS – Strukturierte Programmierung in der Praxis / COLUMBUS – Structured Programming in Practice. it - Information Technology, Vol. 19 (Issue 1-6), pp. 30-34.
https://doi.org/10.1524/itit.1977.19.16.30
GEWALD, K., HERTEL, D. and WITT, J.. "COLUMBUS – Strukturierte Programmierung in der Praxis / COLUMBUS – Structured Programming in Practice"
it - Information Technology 19, no. 1-6 (1977): 30-34.
https://doi.org/10.1524/itit.1977.19.16.30
GEWALD K, HERTEL D, WITT J. COLUMBUS – Strukturierte Programmierung in der Praxis / COLUMBUS – Structured Programming in Practice.
it - Information Technology. 1977;19(1-6): 30-34.
https://doi.org/10.1524/itit.1977.19.16.30
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