Held, T. (1993). Establishment and empirical validation of problem structures based on domain specific skills and textual properties: A contribution to the "Theory of Knowledge Spaces".
Chicago Style (17th ed.) CitationHeld, Theo. Establishment and Empirical Validation of Problem Structures Based on Domain Specific Skills and Textual Properties: A Contribution to the "Theory of Knowledge Spaces". 1993.
MLA (9th ed.) CitationHeld, Theo. Establishment and Empirical Validation of Problem Structures Based on Domain Specific Skills and Textual Properties: A Contribution to the "Theory of Knowledge Spaces". 1993.
Warning: These citations may not always be 100% accurate.