| article html file updated | 8 February 2020 08:13 CET | Update | https://www.mdpi.com/2218-273X/7/2/43 |
| article html file updated | 25 September 2019 08:01 CEST | Update | - |
| article html file updated | 3 May 2019 17:36 CEST | Update | - |
| article html file updated | 28 June 2017 12:42 CEST | Update | - |
| article html file updated | 14 June 2017 11:17 CEST | Original file | - |
| article xml uploaded. | 14 June 2017 11:15 CEST | Original file | https://www.mdpi.com/2218-273X/7/2/43/xml |
| article pdf uploaded. | 14 June 2017 11:15 CEST | Updated version of record | https://www.mdpi.com/2218-273X/7/2/43/pdf |
| article pdf uploaded. | 13 June 2017 16:03 CEST | Version of Record | https://www.mdpi.com/2218-273X/7/2/43/pdf-vor |
