| article html file updated | 9 February 2020 05:08 CET | Update | https://www.mdpi.com/2218-6581/7/1/8 |
| article html file updated | 30 September 2019 10:10 CEST | Update | - |
| article html file updated | 1 May 2019 21:51 CEST | Update | - |
| article html file updated | 17 April 2019 20:39 CEST | Update | - |
| article html file updated | 28 March 2019 20:04 CET | Update | - |
| article html file updated | 27 March 2018 16:26 CEST | Update | - |
| article html file updated | 1 February 2018 08:52 CET | Original file | - |
| article xml uploaded. | 1 February 2018 08:43 CET | Update | https://www.mdpi.com/2218-6581/7/1/8/xml |
| article xml uploaded. | 1 February 2018 08:43 CET | Update | - |
| article xml uploaded. | 1 February 2018 08:43 CET | Update | - |
| article xml uploaded. | 1 February 2018 08:43 CET | Update | - |
| article xml uploaded. | 1 February 2018 08:43 CET | Original file | - |
| article pdf uploaded. | 1 February 2018 08:43 CET | Version of Record | https://www.mdpi.com/2218-6581/7/1/8/pdf |
