| article html file updated | 8 February 2020 08:10 CET | Update | https://www.mdpi.com/2075-4663/5/2/37 |
| article html file updated | 25 September 2019 07:45 CEST | Update | - |
| article html file updated | 3 May 2019 17:41 CEST | Update | - |
| article html file updated | 29 June 2017 11:51 CEST | Update | - |
| article html file updated | 13 June 2017 13:25 CEST | Original file | - |
| article xml uploaded. | 13 June 2017 13:24 CEST | Original file | https://www.mdpi.com/2075-4663/5/2/37/xml |
| article pdf uploaded. | 13 June 2017 13:24 CEST | Version of Record | https://www.mdpi.com/2075-4663/5/2/37/pdf |
