| article html file updated | 8 February 2020 07:02 CET | Update | https://www.mdpi.com/2077-0472/7/6/48 |
| article html file updated | 25 September 2019 02:04 CEST | Update | - |
| article html file updated | 3 May 2019 19:48 CEST | Update | - |
| article html file updated | 27 June 2017 09:23 CEST | Update | - |
| article html file updated | 9 June 2017 08:57 CEST | Update | - |
| article xml uploaded. | 9 June 2017 08:55 CEST | Update | https://www.mdpi.com/2077-0472/7/6/48/xml |
| article pdf uploaded. | 9 June 2017 08:55 CEST | Updated version of record | https://www.mdpi.com/2077-0472/7/6/48/pdf |
| article html file updated | 30 May 2017 14:17 CEST | Original file | - |
| article pdf uploaded. | 30 May 2017 14:16 CEST | Version of Record | https://www.mdpi.com/2077-0472/7/6/48/pdf-vor |
