| article html file updated | 30 August 2025 02:05 CEST | Update | https://www.mdpi.com/2075-4698/8/1/2 |
| article html file updated | 16 July 2022 08:10 CEST | Update | - |
| article html file updated | 9 February 2020 01:13 CET | Update | - |
| article html file updated | 2 May 2019 06:06 CEST | Update | - |
| article html file updated | 18 April 2019 04:05 CEST | Update | - |
| article html file updated | 28 March 2019 11:11 CET | Update | - |
| article html file updated | 27 March 2018 15:05 CEST | Update | - |
| article html file updated | 25 December 2017 17:21 CET | Original file | - |
| article xml uploaded. | 25 December 2017 17:20 CET | Original file | https://www.mdpi.com/2075-4698/8/1/2/xml |
| article pdf uploaded. | 25 December 2017 17:20 CET | Version of Record | https://www.mdpi.com/2075-4698/8/1/2/pdf |
