| article html file updated | 30 August 2025 09:33 CEST | Update | https://www.mdpi.com/2297-8739/5/4/57 |
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| article xml uploaded. | 19 December 2018 08:39 CET | Update | https://www.mdpi.com/2297-8739/5/4/57/xml |
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| article pdf uploaded. | 19 December 2018 08:39 CET | Updated version of record | https://www.mdpi.com/2297-8739/5/4/57/pdf |
| article html file updated | 4 December 2018 14:09 CET | Original file | N/A |
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| article xml uploaded. | 4 December 2018 14:08 CET | Update | N/A |
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