| article html file updated | 7 February 2020 00:03 CET | Update | https://www.mdpi.com/2075-4442/3/4/628 |
| article html file updated | 6 May 2019 08:46 CEST | Update | N/A |
| article html file updated | 26 March 2019 13:04 CET | Original file | N/A |
| article pdf uploaded. | 27 October 2015 10:44 CET | Updated version of record | https://www.mdpi.com/2075-4442/3/4/628/pdf |
| article pdf uploaded. | 21 October 2015 15:29 CEST | Version of Record | https://www.mdpi.com/2075-4442/3/4/628/pdf-vor |
