| article html file updated | 6 February 2020 08:36 CET | Update | https://www.mdpi.com/2075-1680/3/2/166 |
| article html file updated | 20 September 2019 07:24 CEST | Update | N/A |
| article html file updated | 7 May 2019 15:52 CEST | Update | N/A |
| article html file updated | 21 March 2019 15:32 CET | Original file | N/A |
| article pdf uploaded. | 17 April 2014 16:48 CEST | Updated version of record | https://www.mdpi.com/2075-1680/3/2/166/pdf |
| article pdf uploaded. | 17 April 2014 09:49 CEST | Updated version of record | https://www.mdpi.com/2075-1680/3/2/166/pdf-vor |
| article pdf uploaded. | 15 April 2014 10:59 CEST | Version of Record | https://www.mdpi.com/2075-1680/3/2/166/pdf-vor |
