| article html file updated | 6 February 2020 23:49 CET | Update | https://www.mdpi.com/2075-4701/5/4/1887 |
| article html file updated | 6 May 2019 09:15 CEST | Update | N/A |
| article html file updated | 26 March 2019 12:38 CET | Original file | N/A |
| article pdf uploaded. | 16 October 2015 10:43 CEST | Updated version of record | https://www.mdpi.com/2075-4701/5/4/1887/pdf |
| article pdf uploaded. | 15 October 2015 17:11 CEST | Version of Record | https://www.mdpi.com/2075-4701/5/4/1887/pdf-vor |
