| article html file updated | 8 February 2020 08:40 CET | Update | https://www.mdpi.com/2073-8994/9/6/93 |
| article html file updated | 25 September 2019 10:26 CEST | Update | - |
| article html file updated | 3 May 2019 16:44 CEST | Update | - |
| article html file updated | 28 June 2017 14:56 CEST | Update | - |
| article html file updated | 20 June 2017 13:27 CEST | Original file | - |
| article xml uploaded. | 20 June 2017 13:25 CEST | Update | https://www.mdpi.com/2073-8994/9/6/93/xml |
| article pdf uploaded. | 20 June 2017 13:25 CEST | Updated version of record | https://www.mdpi.com/2073-8994/9/6/93/pdf |
