| article html file updated | 8 February 2020 06:40 CET | Update | https://www.mdpi.com/2077-0472/7/6/46 |
| article html file updated | 25 September 2019 00:09 CEST | Update | - |
| article html file updated | 3 May 2019 20:29 CEST | Update | - |
| article html file updated | 27 June 2017 09:23 CEST | Update | - |
| article html file updated | 25 May 2017 11:17 CEST | Original file | - |
| article xml uploaded. | 25 May 2017 11:16 CEST | Update | https://www.mdpi.com/2077-0472/7/6/46/xml |
| article pdf uploaded. | 25 May 2017 11:16 CEST | Version of Record | https://www.mdpi.com/2077-0472/7/6/46/pdf |
