| article html file updated | 6 February 2020 00:55 CET | Update | https://www.mdpi.com/2079-6382/2/1/73 |
| article html file updated | 19 September 2019 18:41 CEST | Update | N/A |
| article html file updated | 8 May 2019 07:33 CEST | Update | N/A |
| article html file updated | 20 March 2019 19:34 CET | Update | N/A |
| article html file updated | 17 June 2015 07:21 CEST | Original file | N/A |
| article pdf uploaded. | 11 March 2013 10:36 CET | Version of Record | https://www.mdpi.com/2079-6382/2/1/73/pdf |
