Figures & data
Table 1. Selection process.
Table 2. Final selection of papers coded according to analytical categories.
Table 3. Country of origin of the selected papers.
Table 4. Key terms for differentiation.
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Table 1. Selection process.
Table 2. Final selection of papers coded according to analytical categories.
Table 3. Country of origin of the selected papers.
Table 4. Key terms for differentiation.
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