| article html file updated | 30 August 2025 04:42 CEST | Update | https://www.mdpi.com/2199-8531/4/3/20 |
| article html file updated | 21 August 2025 20:15 CEST | Update | - |
| article html file updated | 16 July 2022 21:56 CEST | Update | - |
| article html file updated | 9 February 2020 22:17 CET | Update | - |
| article html file updated | 4 October 2019 19:29 CEST | Update | - |
| article html file updated | 30 April 2019 08:55 CEST | Update | - |
| article html file updated | 16 April 2019 03:55 CEST | Update | - |
| article html file updated | 30 March 2019 12:51 CET | Update | - |
| article html file updated | 21 June 2018 11:42 CEST | Update | - |
| article pdf uploaded. | 21 June 2018 11:40 CEST | Updated version of record | https://www.mdpi.com/2199-8531/4/3/20/pdf |
| article xml uploaded. | 21 June 2018 11:40 CEST | Update | https://www.mdpi.com/2199-8531/4/3/20/xml |
| article xml file uploaded | 21 June 2018 11:40 CEST | Update | - |
| article html file updated | 21 June 2018 11:35 CEST | Original file | - |
| article xml file uploaded | 21 June 2018 11:34 CEST | Original file | - |