| article html file updated | 9 February 2020 19:33 CET | Update | https://www.mdpi.com/2032-6653/9/1/4 |
| article html file updated | 4 October 2019 02:12 CEST | Update | - |
| article html file updated | 30 April 2019 15:29 CEST | Update | - |
| article html file updated | 16 April 2019 16:00 CEST | Update | - |
| article html file updated | 30 March 2019 05:51 CET | Update | - |
| article pdf uploaded. | 22 June 2018 05:33 CEST | Updated version of record | https://www.mdpi.com/2032-6653/9/1/4/pdf |
| article html file updated | 30 May 2018 10:47 CEST | Original file | - |
| article pdf uploaded. | 30 May 2018 10:46 CEST | Version of Record | https://www.mdpi.com/2032-6653/9/1/4/pdf-vor |
| article xml uploaded. | 30 May 2018 10:46 CEST | Update | https://www.mdpi.com/2032-6653/9/1/4/xml |
| article xml file uploaded | 30 May 2018 10:46 CEST | Original file | - |
