| article html file updated | 6 February 2020 10:51 CET | Update | https://www.mdpi.com/2304-6767/2/3/78 |
| article html file updated | 7 May 2019 11:21 CEST | Update | - |
| article html file updated | 21 March 2019 21:17 CET | Update | - |
| article html file updated | 20 August 2015 13:13 CEST | Original file | - |
| article pdf uploaded. | 21 July 2014 09:37 CEST | Version of Record | https://www.mdpi.com/2304-6767/2/3/78/pdf |
