| article html file updated | 6 February 2020 11:42 CET | Update | https://www.mdpi.com/2079-6439/2/3/240 |
| article html file updated | 20 September 2019 12:01 CEST | Update | N/A |
| article html file updated | 7 May 2019 09:17 CEST | Update | N/A |
| article html file updated | 21 March 2019 23:37 CET | Update | N/A |
| article html file updated | 20 August 2015 16:16 CEST | Original file | N/A |
| article pdf uploaded. | 22 August 2014 10:31 CEST | Version of Record | https://www.mdpi.com/2079-6439/2/3/240/pdf |
