| article html file updated | 30 August 2025 08:22 CEST | Update | https://www.mdpi.com/2075-4663/6/4/136 |
| article html file updated | 17 July 2022 07:02 CEST | Update | - |
| article html file updated | 10 February 2020 19:00 CET | Update | - |
| article html file updated | 9 October 2019 20:36 CEST | Update | - |
| article html file updated | 28 April 2019 13:40 CEST | Update | - |
| article html file updated | 14 April 2019 08:52 CEST | Update | - |
| article html file updated | 1 April 2019 14:57 CEST | Update | - |
| article html file updated | 25 December 2018 04:20 CET | Update | - |
| article html file updated | 1 November 2018 07:51 CET | Original file | - |
| article pdf uploaded. | 1 November 2018 07:50 CET | Version of Record | https://www.mdpi.com/2075-4663/6/4/136/pdf |
| article xml uploaded. | 1 November 2018 07:50 CET | Update | https://www.mdpi.com/2075-4663/6/4/136/xml |
| article xml file uploaded | 1 November 2018 07:50 CET | Original file | - |
