| article html file updated | 8 February 2020 09:59 CET | Update | https://www.mdpi.com/2226-4787/5/3/37 |
| article html file updated | 25 September 2019 17:41 CEST | Update | - |
| article html file updated | 3 May 2019 14:14 CEST | Update | - |
| article html file updated | 30 September 2017 15:41 CEST | Update | - |
| article html file updated | 4 July 2017 03:14 CEST | Original file | - |
| article xml uploaded. | 4 July 2017 03:13 CEST | Original file | https://www.mdpi.com/2226-4787/5/3/37/xml |
| article pdf uploaded. | 4 July 2017 03:13 CEST | Version of Record | https://www.mdpi.com/2226-4787/5/3/37/pdf |
