| article html file updated | 8 February 2020 07:29 CET | Update | https://www.mdpi.com/2227-9040/5/2/19 |
| article html file updated | 25 September 2019 04:16 CEST | Update | - |
| article html file updated | 3 May 2019 18:57 CEST | Update | - |
| article html file updated | 28 June 2017 12:52 CEST | Update | - |
| article html file updated | 5 June 2017 14:01 CEST | Original file | - |
| article xml uploaded. | 5 June 2017 14:00 CEST | Update | https://www.mdpi.com/2227-9040/5/2/19/xml |
| article pdf uploaded. | 5 June 2017 14:00 CEST | Updated version of record | https://www.mdpi.com/2227-9040/5/2/19/pdf |
