| article html file updated | 8 February 2020 15:57 CET | Update | https://www.mdpi.com/2075-4663/5/3/67 |
| article html file updated | 27 September 2019 02:09 CEST | Update | - |
| article html file updated | 3 May 2019 02:25 CEST | Update | - |
| article html file updated | 30 September 2017 10:08 CEST | Update | - |
| article html file updated | 12 September 2017 12:33 CEST | Original file | - |
| article xml uploaded. | 12 September 2017 12:32 CEST | Original file | https://www.mdpi.com/2075-4663/5/3/67/xml |
| article pdf uploaded. | 12 September 2017 12:32 CEST | Version of Record | https://www.mdpi.com/2075-4663/5/3/67/pdf |
