| article html file updated | 7 February 2020 17:53 CET | Update | https://www.mdpi.com/2073-4409/5/4/40 |
| article html file updated | 22 September 2019 05:22 CEST | Update | N/A |
| article html file updated | 4 May 2019 22:47 CEST | Update | N/A |
| article html file updated | 27 October 2017 09:09 CEST | Update | N/A |
| article html file updated | 28 December 2016 11:36 CET | Update | N/A |
| article html file updated | 11 November 2016 13:18 CET | Original file | N/A |
| article xml uploaded. | 11 November 2016 13:17 CET | Update | https://www.mdpi.com/2073-4409/5/4/40/xml |
| article xml uploaded. | 11 November 2016 13:17 CET | Original file | N/A |
| article pdf uploaded. | 11 November 2016 13:17 CET | Version of Record | https://www.mdpi.com/2073-4409/5/4/40/pdf |
