| article html file updated | 8 February 2020 09:55 CET | Update | https://www.mdpi.com/2218-273X/7/3/50 |
| article html file updated | 25 September 2019 17:15 CEST | Update | - |
| article html file updated | 3 May 2019 14:23 CEST | Update | - |
| article html file updated | 14 March 2018 17:50 CET | Update | - |
| article html file updated | 30 September 2017 11:22 CEST | Update | - |
| article html file updated | 4 July 2017 12:25 CEST | Original file | - |
| article xml uploaded. | 4 July 2017 12:23 CEST | Update | https://www.mdpi.com/2218-273X/7/3/50/xml |
| article pdf uploaded. | 4 July 2017 12:23 CEST | Updated version of record | https://www.mdpi.com/2218-273X/7/3/50/pdf |
| article pdf uploaded. | 3 July 2017 10:44 CEST | Version of Record | https://www.mdpi.com/2218-273X/7/3/50/pdf-vor |
