| article html file updated | 30 August 2025 09:40 CEST | Update | https://www.mdpi.com/2218-1997/4/12/142 |
| article html file updated | 17 July 2022 13:50 CEST | Update | - |
| article html file updated | 11 February 2020 01:43 CET | Update | - |
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| article html file updated | 13 February 2019 09:14 CET | Update | - |
| article xml uploaded. | 13 February 2019 09:10 CET | Update | https://www.mdpi.com/2218-1997/4/12/142/xml |
| article pdf uploaded. | 13 February 2019 09:10 CET | Updated version of record | https://www.mdpi.com/2218-1997/4/12/142/pdf |
| article html file updated | 25 December 2018 04:19 CET | Update | - |
| article html file updated | 8 December 2018 14:03 CET | Original file | - |
| article pdf uploaded. | 8 December 2018 14:02 CET | Updated version of record | https://www.mdpi.com/2218-1997/4/12/142/pdf-vor |
| article xml uploaded. | 8 December 2018 14:02 CET | Update | - |
| article xml file uploaded | 8 December 2018 14:02 CET | Update | - |
| article pdf uploaded. | 6 December 2018 17:44 CET | Updated version of record | https://www.mdpi.com/2218-1997/4/12/142/pdf-vor |
| article xml file uploaded | 6 December 2018 17:42 CET | Original file | - |
| article pdf uploaded. | 6 December 2018 17:42 CET | Version of Record | https://www.mdpi.com/2218-1997/4/12/142/pdf-vor |
