| article html file updated | 9 February 2020 00:40 CET | Update | https://www.mdpi.com/2077-0472/7/12/104 |
| article html file updated | 29 September 2019 08:40 CEST | Update | - |
| article html file updated | 2 May 2019 07:17 CEST | Update | - |
| article html file updated | 18 April 2019 05:09 CEST | Update | - |
| article html file updated | 2 January 2018 17:01 CET | Update | - |
| article html file updated | 20 December 2017 12:31 CET | Original file | - |
| article xml uploaded. | 20 December 2017 12:30 CET | Original file | https://www.mdpi.com/2077-0472/7/12/104/xml |
| article pdf uploaded. | 20 December 2017 12:30 CET | Version of Record | https://www.mdpi.com/2077-0472/7/12/104/pdf |
