| article html file updated | 7 February 2020 11:26 CET | Update | https://www.mdpi.com/2077-1312/4/3/43 |
| article html file updated | 21 September 2019 20:40 CEST | Update | - |
| article html file updated | 5 May 2019 10:37 CEST | Update | - |
| article html file updated | 27 March 2019 09:48 CET | Update | - |
| article html file updated | 27 October 2017 11:01 CEST | Update | - |
| article html file updated | 18 July 2016 03:55 CEST | Update | - |
| article xml uploaded. | 18 July 2016 03:54 CEST | Update | https://www.mdpi.com/2077-1312/4/3/43/xml |
| article pdf uploaded. | 18 July 2016 03:54 CEST | Updated version of record | https://www.mdpi.com/2077-1312/4/3/43/pdf |
| article html file updated | 9 July 2016 07:44 CEST | Original file | - |
| article pdf uploaded. | 9 July 2016 07:43 CEST | Version of Record | https://www.mdpi.com/2077-1312/4/3/43/pdf-vor |
