| article html file updated | 30 August 2025 01:22 CEST | Update | https://www.mdpi.com/2311-5521/2/4/52 |
| article html file updated | 16 July 2022 06:42 CEST | Update | N/A |
| article html file updated | 8 February 2020 17:57 CET | Update | N/A |
| article html file updated | 27 September 2019 14:32 CEST | Update | N/A |
| article html file updated | 2 May 2019 22:25 CEST | Update | N/A |
| article html file updated | 2 January 2018 12:32 CET | Update | N/A |
| article html file updated | 10 October 2017 07:51 CEST | Original file | N/A |
| article xml uploaded. | 10 October 2017 07:50 CEST | Original file | https://www.mdpi.com/2311-5521/2/4/52/xml |
| article pdf uploaded. | 10 October 2017 07:50 CEST | Updated version of record | https://www.mdpi.com/2311-5521/2/4/52/pdf |
| article pdf uploaded. | 8 October 2017 10:54 CEST | Version of Record | N/A |