| article html file updated | 15 August 2026 07:30 CEST | Update | https://www.mdpi.com/1996-1073/11/9/2451 |
| article html file updated | 10 February 2020 11:07 CET | Update | N/A |
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| article xml uploaded. | 15 September 2018 08:52 CEST | Update | https://www.mdpi.com/1996-1073/11/9/2451/xml |
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| article pdf uploaded. | 15 September 2018 08:52 CEST | Updated version of record | https://www.mdpi.com/1996-1073/11/9/2451/pdf |
| article pdf uploaded. | 15 September 2018 08:30 CEST | Version of Record | N/A |
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