Helland, I. S. (2010). Steps towards a unified basis for scientific models and methods. World Scientific.
Citace podle Chicago (17th ed.)Helland, Inge S. Steps Towards a Unified Basis for Scientific Models and Methods. Singapore ; Hackensack, N.J.: World Scientific, 2010.
Citace podle MLA (9th ed.)Helland, Inge S. Steps Towards a Unified Basis for Scientific Models and Methods. World Scientific, 2010.
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