| article html file updated | 30 August 2025 03:38 CEST | Update | https://www.mdpi.com/2075-4663/6/2/39 |
| article html file updated | 16 July 2022 10:58 CEST | Update | - |
| article html file updated | 9 February 2020 15:03 CET | Update | - |
| article html file updated | 2 October 2019 22:06 CEST | Update | - |
| article html file updated | 1 May 2019 01:05 CEST | Update | - |
| article html file updated | 17 April 2019 01:42 CEST | Update | - |
| article html file updated | 29 March 2019 18:34 CET | Update | - |
| article html file updated | 25 June 2018 12:39 CEST | Update | - |
| article html file updated | 24 April 2018 09:46 CEST | Original file | - |
| article pdf uploaded. | 24 April 2018 09:44 CEST | Version of Record | https://www.mdpi.com/2075-4663/6/2/39/pdf |
| article xml uploaded. | 24 April 2018 09:44 CEST | Update | https://www.mdpi.com/2075-4663/6/2/39/xml |
| article xml file uploaded | 24 April 2018 09:44 CEST | Original file | - |