| article html file updated | 31 August 2025 12:52 CEST | Update | https://www.mdpi.com/2218-1997/6/3/37 |
| article html file updated | 20 July 2022 21:22 CEST | Update | - |
| article html file updated | 1 April 2020 23:33 CEST | Update | - |
| article html file updated | 19 March 2020 02:39 CET | Original file | - |
| article pdf uploaded. | 18 March 2020 16:37 CET | Updated version of record | https://www.mdpi.com/2218-1997/6/3/37/pdf |
| article xml uploaded. | 18 March 2020 16:37 CET | Update | https://www.mdpi.com/2218-1997/6/3/37/xml |
| article xml file uploaded | 18 March 2020 16:37 CET | Update | - |
| article pdf uploaded. | 27 February 2020 11:16 CET | Version of Record | https://www.mdpi.com/2218-1997/6/3/37/pdf-vor |
| article xml file uploaded | 27 February 2020 11:16 CET | Original file | - |
