| article html file updated | 8 February 2020 08:22 CET | Update | https://www.mdpi.com/2075-4663/5/2/41 |
| article html file updated | 25 September 2019 08:50 CEST | Update | - |
| article html file updated | 3 May 2019 17:19 CEST | Update | - |
| article html file updated | 29 June 2017 11:51 CEST | Update | - |
| article html file updated | 15 June 2017 11:56 CEST | Original file | - |
| article xml uploaded. | 15 June 2017 11:55 CEST | Original file | https://www.mdpi.com/2075-4663/5/2/41/xml |
| article pdf uploaded. | 15 June 2017 11:55 CEST | Version of Record | https://www.mdpi.com/2075-4663/5/2/41/pdf |
