| article html file updated | 6 February 2020 08:52 CET | Update | https://www.mdpi.com/2075-471X/3/2/208 |
| article html file updated | 20 September 2019 07:50 CEST | Update | N/A |
| article html file updated | 7 May 2019 15:21 CEST | Update | N/A |
| article html file updated | 21 March 2019 16:09 CET | Update | N/A |
| article html file updated | 18 January 2017 11:42 CET | Original file | N/A |
| article pdf uploaded. | 25 April 2014 10:42 CEST | Version of Record | https://www.mdpi.com/2075-471X/3/2/208/pdf |
