| article html file updated | 30 August 2025 00:08 CEST | Update | https://www.mdpi.com/1996-1073/10/1/30 |
| article html file updated | 16 July 2022 04:18 CEST | Update | N/A |
| article html file updated | 7 February 2020 20:23 CET | Update | N/A |
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| article html file updated | 7 February 2017 09:35 CET | Update | N/A |
| article html file updated | 29 December 2016 08:48 CET | Original file | N/A |
| article xml uploaded. | 29 December 2016 08:46 CET | Update | https://www.mdpi.com/1996-1073/10/1/30/xml |
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| article pdf uploaded. | 29 December 2016 08:30 CET | Updated version of record | https://www.mdpi.com/1996-1073/10/1/30/pdf |
| article pdf uploaded. | 27 December 2016 11:18 CET | Version of Record | https://www.mdpi.com/1996-1073/10/1/30/pdf-vor |
