| article html file updated | 8 February 2020 16:34 CET | Update | https://www.mdpi.com/2077-0472/7/9/77 |
| article html file updated | 27 September 2019 05:36 CEST | Update | - |
| article html file updated | 3 May 2019 01:16 CEST | Update | - |
| article html file updated | 26 September 2017 06:17 CEST | Update | - |
| article html file updated | 19 September 2017 15:22 CEST | Original file | - |
| article xml uploaded. | 19 September 2017 15:21 CEST | Original file | https://www.mdpi.com/2077-0472/7/9/77/xml |
| article pdf uploaded. | 19 September 2017 15:21 CEST | Updated version of record | https://www.mdpi.com/2077-0472/7/9/77/pdf |
| article pdf uploaded. | 19 September 2017 14:29 CEST | Version of Record | - |
