| article html file updated | 8 February 2020 05:56 CET | Update | https://www.mdpi.com/2227-9040/5/2/16 |
| article html file updated | 24 September 2019 20:17 CEST | Update | - |
| article html file updated | 3 May 2019 21:54 CEST | Update | - |
| article html file updated | 28 June 2017 12:51 CEST | Update | - |
| article html file updated | 23 May 2017 04:17 CEST | Update | - |
| article html file updated | 16 May 2017 09:00 CEST | Original file | - |
| article xml uploaded. | 16 May 2017 08:59 CEST | Original file | https://www.mdpi.com/2227-9040/5/2/16/xml |
| article pdf uploaded. | 16 May 2017 08:59 CEST | Version of Record | https://www.mdpi.com/2227-9040/5/2/16/pdf |
