| article html file updated | 6 February 2020 10:54 CET | Update | https://www.mdpi.com/2075-4450/5/3/596 |
| article html file updated | 7 May 2019 11:14 CEST | Update | N/A |
| article html file updated | 21 March 2019 21:27 CET | Update | N/A |
| article html file updated | 20 August 2015 13:25 CEST | Original file | N/A |
| article pdf uploaded. | 22 July 2014 13:01 CEST | Version of Record | https://www.mdpi.com/2075-4450/5/3/596/pdf |
