| article html file updated | 8 February 2020 17:51 CET | Update | https://www.mdpi.com/2304-6775/5/4/24 |
| article html file updated | 27 September 2019 13:42 CEST | Update | - |
| article html file updated | 2 May 2019 22:38 CEST | Update | - |
| article html file updated | 2 January 2018 12:15 CET | Update | - |
| article html file updated | 11 October 2017 04:15 CEST | Original file | - |
| article xml uploaded. | 11 October 2017 04:14 CEST | Original file | https://www.mdpi.com/2304-6775/5/4/24/xml |
| article pdf uploaded. | 11 October 2017 04:14 CEST | Updated version of record | https://www.mdpi.com/2304-6775/5/4/24/pdf |
| article pdf uploaded. | 5 October 2017 17:11 CEST | Version of Record | https://www.mdpi.com/2304-6775/5/4/24/pdf-vor |
