| article html file updated | 29 August 2025 23:08 CEST | Update | https://www.mdpi.com/2304-8158/5/2/40 |
| article html file updated | 16 July 2022 02:29 CEST | Update | - |
| article html file updated | 7 February 2020 09:15 CET | Update | - |
| article html file updated | 12 September 2019 07:31 CEST | Update | - |
| article html file updated | 12 September 2019 07:14 CEST | Update | - |
| article html file updated | 12 September 2019 05:31 CEST | Update | - |
| article html file updated | 5 May 2019 14:44 CEST | Update | - |
| article html file updated | 27 March 2019 05:43 CET | Update | - |
| article html file updated | 10 February 2017 03:46 CET | Update | - |
| article html file updated | 5 July 2016 06:38 CEST | Update | - |
| article html file updated | 25 May 2016 12:24 CEST | Original file | - |
| article xml uploaded. | 25 May 2016 12:23 CEST | Original file | https://www.mdpi.com/2304-8158/5/2/40/xml |
| article pdf uploaded. | 25 May 2016 12:23 CEST | Version of Record | https://www.mdpi.com/2304-8158/5/2/40/pdf |
