| article html file updated | 30 August 2025 01:51 CEST | Update | https://www.mdpi.com/2311-5521/2/4/66 |
| article html file updated | 21 August 2025 19:27 CEST | Update | N/A |
| article html file updated | 16 July 2022 07:44 CEST | Update | N/A |
| article html file updated | 8 February 2020 22:51 CET | Update | N/A |
| article html file updated | 28 September 2019 22:02 CEST | Update | N/A |
| article html file updated | 2 May 2019 11:17 CEST | Update | N/A |
| article html file updated | 18 April 2019 08:54 CEST | Update | N/A |
| article html file updated | 2 January 2018 12:29 CET | Update | N/A |
| article html file updated | 1 December 2017 17:15 CET | Original file | N/A |
| article xml uploaded. | 1 December 2017 17:13 CET | Original file | https://www.mdpi.com/2311-5521/2/4/66/xml |
| article pdf uploaded. | 1 December 2017 17:13 CET | Version of Record | https://www.mdpi.com/2311-5521/2/4/66/pdf |
