| article html file updated | 30 August 2025 04:02 CEST | Update | https://www.mdpi.com/2311-5629/4/2/31 |
| article html file updated | 16 July 2022 20:34 CEST | Update | - |
| article html file updated | 9 February 2020 18:18 CET | Update | - |
| article html file updated | 3 October 2019 18:41 CEST | Update | - |
| article html file updated | 30 April 2019 18:19 CEST | Update | - |
| article html file updated | 16 April 2019 18:46 CEST | Update | - |
| article html file updated | 30 March 2019 02:39 CET | Update | - |
| article html file updated | 21 May 2018 17:39 CEST | Original file | - |
| article xml uploaded. | 21 May 2018 17:38 CEST | Update | https://www.mdpi.com/2311-5629/4/2/31/xml |
| article pdf uploaded. | 21 May 2018 17:38 CEST | Updated version of record | https://www.mdpi.com/2311-5629/4/2/31/pdf |
| article pdf uploaded. | 19 May 2018 12:12 CEST | Updated version of record | https://www.mdpi.com/2311-5629/4/2/31/pdf-vor |
| article pdf uploaded. | 19 May 2018 12:10 CEST | Version of Record | https://www.mdpi.com/2311-5629/4/2/31/pdf-vor |
| article xml file uploaded | 19 May 2018 12:10 CEST | Original file | - |