| article html file updated | 29 August 2025 21:18 CEST | Update | https://www.mdpi.com/2304-6732/1/4/369 |
| article html file updated | 15 July 2022 23:29 CEST | Update | N/A |
| article html file updated | 6 February 2020 13:03 CET | Update | N/A |
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| article html file updated | 21 August 2015 00:06 CEST | Original file | N/A |
| article pdf uploaded. | 24 October 2014 12:00 CEST | Updated version of record | https://www.mdpi.com/2304-6732/1/4/369/pdf |
| article pdf uploaded. | 23 October 2014 10:55 CEST | Version of Record | https://www.mdpi.com/2304-6732/1/4/369/pdf-vor |
