| article html file updated | 8 February 2020 00:18 CET | Update | https://www.mdpi.com/2077-1444/8/3/34 |
| article html file updated | 23 September 2019 13:09 CEST | Update | - |
| article html file updated | 4 May 2019 09:20 CEST | Update | - |
| article html file updated | 29 March 2017 06:00 CEST | Update | - |
| article html file updated | 2 March 2017 09:41 CET | Original file | - |
| article xml uploaded. | 2 March 2017 09:19 CET | Original file | https://www.mdpi.com/2077-1444/8/3/34/xml |
| article pdf uploaded. | 2 March 2017 09:19 CET | Updated version of record | https://www.mdpi.com/2077-1444/8/3/34/pdf |
| article pdf uploaded. | 25 February 2017 13:43 CET | Version of Record | https://www.mdpi.com/2077-1444/8/3/34/pdf-vor |
