| article html file updated | 14 August 2026 22:09 CEST | Update | https://www.mdpi.com/2076-3387/8/1/2 |
| article html file updated | 9 February 2020 06:19 CET | Update | N/A |
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| article xml uploaded. | 14 February 2018 05:13 CET | Original file | https://www.mdpi.com/2076-3387/8/1/2/xml |
| article pdf uploaded. | 14 February 2018 05:13 CET | Updated version of record | https://www.mdpi.com/2076-3387/8/1/2/pdf |
| article pdf uploaded. | 11 February 2018 12:32 CET | Version of Record | https://www.mdpi.com/2076-3387/8/1/2/pdf-vor |
