| article html file updated | 31 August 2025 07:33 CEST | Update | https://www.mdpi.com/2218-1997/6/1/5 |
| article html file updated | 19 July 2022 20:45 CEST | Update | N/A |
| article html file updated | 14 February 2020 21:55 CET | Update | N/A |
| article html file updated | 27 December 2019 02:36 CET | Update | N/A |
| article pdf uploaded. | 27 December 2019 02:35 CET | Updated version of record | https://www.mdpi.com/2218-1997/6/1/5/pdf |
| article xml uploaded. | 27 December 2019 02:35 CET | Update | https://www.mdpi.com/2218-1997/6/1/5/xml |
| article xml file uploaded | 27 December 2019 02:35 CET | Update | N/A |
| article html file updated | 26 December 2019 12:18 CET | Original file | N/A |
| article pdf uploaded. | 26 December 2019 12:17 CET | Version of Record | https://www.mdpi.com/2218-1997/6/1/5/pdf-vor |
| article xml uploaded. | 26 December 2019 12:17 CET | Update | N/A |
| article xml file uploaded | 26 December 2019 12:17 CET | Original file | N/A |
