| article html file updated | 7 February 2020 09:00 CET | Update | https://www.mdpi.com/2227-9091/4/2/14 |
| article html file updated | 5 May 2019 15:13 CEST | Update | N/A |
| article html file updated | 27 March 2019 05:15 CET | Update | N/A |
| article html file updated | 1 July 2016 12:22 CEST | Update | N/A |
| article html file updated | 20 May 2016 10:38 CEST | Original file | N/A |
| article xml uploaded. | 20 May 2016 10:37 CEST | Original file | https://www.mdpi.com/2227-9091/4/2/14/xml |
| article pdf uploaded. | 20 May 2016 10:37 CEST | Version of Record | https://www.mdpi.com/2227-9091/4/2/14/pdf |
