| article html file updated | 6 February 2020 23:33 CET | Update | https://www.mdpi.com/2075-4701/5/4/1857 |
| article html file updated | 6 May 2019 09:48 CEST | Update | N/A |
| article html file updated | 26 March 2019 12:09 CET | Original file | N/A |
| article pdf uploaded. | 9 October 2015 11:40 CEST | Version of Record | https://www.mdpi.com/2075-4701/5/4/1857/pdf |
