| article html file updated | 8 February 2020 10:38 CET | Update | https://www.mdpi.com/2075-4663/5/3/50 |
| article html file updated | 25 September 2019 20:50 CEST | Update | - |
| article html file updated | 3 May 2019 13:03 CEST | Update | - |
| article html file updated | 30 September 2017 10:09 CEST | Update | - |
| article html file updated | 10 July 2017 14:48 CEST | Original file | - |
| article xml uploaded. | 10 July 2017 14:47 CEST | Original file | https://www.mdpi.com/2075-4663/5/3/50/xml |
| article pdf uploaded. | 10 July 2017 14:47 CEST | Version of Record | https://www.mdpi.com/2075-4663/5/3/50/pdf |
