| article html file updated | 29 August 2025 20:56 CEST | Update | https://www.mdpi.com/2073-4360/6/2/264 |
| article html file updated | 15 July 2022 22:50 CEST | Update | N/A |
| article html file updated | 6 February 2020 07:00 CET | Update | N/A |
| article html file updated | 7 May 2019 19:14 CEST | Update | N/A |
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| article html file updated | 19 August 2015 19:02 CEST | Original file | N/A |
| article pdf uploaded. | 29 January 2014 09:18 CET | Updated version of record | https://www.mdpi.com/2073-4360/6/2/264/pdf |
| article pdf uploaded. | 27 January 2014 16:54 CET | Version of Record | https://www.mdpi.com/2073-4360/6/2/264/pdf-vor |
