| article html file updated | 7 February 2020 07:05 CET | Update | https://www.mdpi.com/2075-1680/5/2/9 |
| article html file updated | 21 September 2019 14:53 CEST | Update | N/A |
| article html file updated | 5 May 2019 18:59 CEST | Update | N/A |
| article html file updated | 27 March 2019 01:33 CET | Update | N/A |
| article html file updated | 1 July 2016 10:07 CEST | Update | N/A |
| article html file updated | 27 April 2016 09:31 CEST | Update | N/A |
| article xml uploaded. | 27 April 2016 09:30 CEST | Update | https://www.mdpi.com/2075-1680/5/2/9/xml |
| article pdf uploaded. | 27 April 2016 09:30 CEST | Updated version of record | https://www.mdpi.com/2075-1680/5/2/9/pdf |
| article html file updated | 11 April 2016 11:21 CEST | Original file | N/A |
| article pdf uploaded. | 11 April 2016 11:20 CEST | Version of Record | https://www.mdpi.com/2075-1680/5/2/9/pdf-vor |
