| article html file updated | 29 August 2025 22:41 CEST | Update | https://www.mdpi.com/1999-4915/8/2/39 |
| article html file updated | 20 August 2025 22:12 CEST | Update | N/A |
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| article html file updated | 26 March 2019 20:09 CET | Original file | N/A |
| article pdf uploaded. | 4 February 2016 11:45 CET | Version of Record | https://www.mdpi.com/1999-4915/8/2/39/pdf |
| article xml uploaded. | 4 February 2016 11:45 CET | Original file | https://www.mdpi.com/1999-4915/8/2/39/xml |
