| article html file updated | 8 February 2020 11:38 CET | Update | https://www.mdpi.com/2077-0383/6/7/74 |
| article html file updated | 26 September 2019 02:08 CEST | Update | - |
| article html file updated | 3 May 2019 11:07 CEST | Update | - |
| article html file updated | 27 March 2019 16:59 CET | Update | - |
| article html file updated | 28 July 2017 11:48 CEST | Update | - |
| article html file updated | 21 July 2017 16:10 CEST | Update | - |
| article html file updated | 21 July 2017 16:09 CEST | Update | - |
| article html file updated | 21 July 2017 16:08 CEST | Original file | - |
| article xml uploaded. | 21 July 2017 16:07 CEST | Original file | https://www.mdpi.com/2077-0383/6/7/74/xml |
| article pdf uploaded. | 21 July 2017 16:07 CEST | Updated version of record | https://www.mdpi.com/2077-0383/6/7/74/pdf |
