| article html file updated | 9 February 2020 06:58 CET | Update | https://www.mdpi.com/2225-1146/6/1/7 |
| article html file updated | 30 September 2019 21:17 CEST | Update | - |
| article html file updated | 1 May 2019 17:44 CEST | Update | - |
| article html file updated | 17 April 2019 17:04 CEST | Update | - |
| article html file updated | 29 March 2019 00:02 CET | Update | - |
| article html file updated | 27 March 2018 15:46 CEST | Update | - |
| article html file updated | 22 February 2018 10:48 CET | Original file | - |
| article xml uploaded. | 22 February 2018 10:47 CET | Original file | https://www.mdpi.com/2225-1146/6/1/7/xml |
| article pdf uploaded. | 22 February 2018 10:47 CET | Updated version of record | https://www.mdpi.com/2225-1146/6/1/7/pdf |
| article pdf uploaded. | 17 February 2018 09:42 CET | Version of Record | https://www.mdpi.com/2225-1146/6/1/7/pdf-vor |
