| article html file updated | 7 February 2020 11:17 CET | Update | https://www.mdpi.com/1420-3049/21/7/878 |
| article html file updated | 21 September 2019 20:26 CEST | Update | - |
| article html file updated | 5 May 2019 10:55 CEST | Update | - |
| article html file updated | 27 March 2019 09:29 CET | Update | - |
| article html file updated | 17 September 2018 04:47 CEST | Update | - |
| article html file updated | 28 July 2016 10:18 CEST | Original file | - |
| article pdf uploaded. | 6 July 2016 08:05 CEST | Version of Record | https://www.mdpi.com/1420-3049/21/7/878/pdf |
