| article html file updated | 30 August 2025 00:40 CEST | Update | https://www.mdpi.com/2311-5521/2/1/12 |
| article html file updated | 16 July 2022 05:23 CEST | Update | - |
| article html file updated | 8 February 2020 01:55 CET | Update | - |
| article html file updated | 23 September 2019 22:28 CEST | Update | - |
| article html file updated | 4 May 2019 05:42 CEST | Update | - |
| article html file updated | 27 October 2017 10:07 CEST | Update | - |
| article html file updated | 27 March 2017 05:21 CEST | Update | - |
| article html file updated | 24 March 2017 06:51 CET | Update | - |
| article html file updated | 21 March 2017 12:46 CET | Original file | - |
| article xml uploaded. | 21 March 2017 12:45 CET | Original file | https://www.mdpi.com/2311-5521/2/1/12/xml |
| article pdf uploaded. | 21 March 2017 12:45 CET | Version of Record | https://www.mdpi.com/2311-5521/2/1/12/pdf |