| article html file updated | 8 February 2020 12:23 CET | Update | https://www.mdpi.com/2077-0383/6/8/77 |
| article html file updated | 26 September 2019 06:21 CEST | Update | - |
| article html file updated | 3 May 2019 09:18 CEST | Update | - |
| article html file updated | 27 March 2019 18:25 CET | Update | - |
| article html file updated | 1 September 2017 08:31 CEST | Update | - |
| article html file updated | 31 July 2017 10:42 CEST | Original file | - |
| article xml uploaded. | 31 July 2017 10:40 CEST | Original file | https://www.mdpi.com/2077-0383/6/8/77/xml |
| article pdf uploaded. | 31 July 2017 10:40 CEST | Version of Record | https://www.mdpi.com/2077-0383/6/8/77/pdf |
