| article html file updated | 30 August 2025 01:52 CEST | Update | https://www.mdpi.com/2073-4360/9/12/668 |
| article html file updated | 16 July 2022 07:45 CEST | Update | N/A |
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| article html file updated | 5 December 2017 11:52 CET | Update | N/A |
| article xml uploaded. | 5 December 2017 11:50 CET | Update | https://www.mdpi.com/2073-4360/9/12/668/xml |
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| article pdf uploaded. | 5 December 2017 11:50 CET | Updated version of record | https://www.mdpi.com/2073-4360/9/12/668/pdf |
| article html file updated | 4 December 2017 14:25 CET | Original file | N/A |
| article xml uploaded. | 4 December 2017 14:23 CET | Update | N/A |
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| article pdf uploaded. | 4 December 2017 14:23 CET | Updated version of record | https://www.mdpi.com/2073-4360/9/12/668/pdf-vor |
| article pdf uploaded. | 3 December 2017 14:05 CET | Version of Record | https://www.mdpi.com/2073-4360/9/12/668/pdf-vor |
