| article html file updated | 30 August 2025 02:06 CEST | Update | https://www.mdpi.com/2073-4425/9/1/7 |
| article html file updated | 16 July 2022 08:13 CEST | Update | - |
| article html file updated | 9 February 2020 01:27 CET | Update | - |
| article html file updated | 29 September 2019 13:12 CEST | Update | - |
| article html file updated | 2 May 2019 05:34 CEST | Update | - |
| article html file updated | 18 April 2019 03:35 CEST | Update | - |
| article html file updated | 28 March 2019 11:49 CET | Update | - |
| article html file updated | 1 February 2018 07:54 CET | Update | - |
| article html file updated | 30 December 2017 09:40 CET | Original file | - |
| article xml uploaded. | 30 December 2017 09:38 CET | Original file | https://www.mdpi.com/2073-4425/9/1/7/xml |
| article pdf uploaded. | 30 December 2017 09:38 CET | Updated version of record | https://www.mdpi.com/2073-4425/9/1/7/pdf |
| article pdf uploaded. | 28 December 2017 17:25 CET | Updated version of record | https://www.mdpi.com/2073-4425/9/1/7/pdf-vor |
| article pdf uploaded. | 28 December 2017 17:18 CET | Updated version of record | https://www.mdpi.com/2073-4425/9/1/7/pdf-vor |
| article pdf uploaded. | 28 December 2017 17:06 CET | Version of Record | https://www.mdpi.com/2073-4425/9/1/7/pdf-vor |