| article html file updated | 6 February 2020 11:21 CET | Update | https://www.mdpi.com/2079-6412/4/3/602 |
| article html file updated | 7 May 2019 10:01 CEST | Update | - |
| article html file updated | 21 March 2019 22:45 CET | Update | - |
| article html file updated | 19 May 2016 05:06 CEST | Update | - |
| article html file updated | 20 August 2015 14:56 CEST | Original file | - |
| article pdf uploaded. | 11 August 2014 10:21 CEST | Version of Record | https://www.mdpi.com/2079-6412/4/3/602/pdf |
