| article html file updated | 29 August 2025 23:26 CEST | Update | https://www.mdpi.com/2077-0375/6/3/39 |
| article html file updated | 16 July 2022 02:59 CEST | Update | - |
| article html file updated | 7 February 2020 12:38 CET | Update | - |
| article html file updated | 5 May 2019 08:25 CEST | Update | - |
| article html file updated | 27 March 2019 12:00 CET | Update | - |
| article html file updated | 29 September 2016 09:56 CEST | Update | - |
| article html file updated | 1 August 2016 13:11 CEST | Update | - |
| article html file updated | 1 August 2016 13:10 CEST | Update | - |
| article xml uploaded. | 1 August 2016 13:10 CEST | Update | https://www.mdpi.com/2077-0375/6/3/39/xml |
| article pdf uploaded. | 1 August 2016 13:10 CEST | Updated version of record | https://www.mdpi.com/2077-0375/6/3/39/pdf |
| article pdf uploaded. | 1 August 2016 13:09 CEST | Updated version of record | https://www.mdpi.com/2077-0375/6/3/39/pdf-vor |
| article html file updated | 30 July 2016 12:08 CEST | Original file | - |
| article pdf uploaded. | 30 July 2016 12:06 CEST | Version of Record | https://www.mdpi.com/2077-0375/6/3/39/pdf-vor |
