| article html file updated | 30 August 2025 01:20 CEST | Update | https://www.mdpi.com/2227-9032/5/4/70 |
| article html file updated | 16 July 2022 06:38 CEST | Update | N/A |
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| article html file updated | 26 October 2017 05:09 CEST | Update | N/A |
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| article pdf uploaded. | 26 October 2017 05:08 CEST | Updated version of record | https://www.mdpi.com/2227-9032/5/4/70/pdf |
| article html file updated | 1 October 2017 12:24 CEST | Original file | N/A |
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