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Relationships Between Relationships
2011Since Chen published the E/R model in 1976, some proposals extending its expressive power have appeared, some of them are based in the preceding semantic models. Thus, currently, some conceptual models allow relationships between relationships and even generalizations of relationships.
C. Calero, M. Piattini, E. Marcos
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Journal of Economic Theory, 2020
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Selman Erol, Rakesh Vohra
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zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Selman Erol, Rakesh Vohra
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Nursing Older People, 2009
The study described in this article explored three methods of care delivery in long-term care environments.
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The study described in this article explored three methods of care delivery in long-term care environments.
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