| article html file updated | 9 February 2020 14:56 CET | Update | https://www.mdpi.com/2227-9091/6/2/43 |
| article html file updated | 2 October 2019 21:24 CEST | Update | - |
| article html file updated | 1 May 2019 01:18 CEST | Update | - |
| article html file updated | 17 April 2019 01:54 CEST | Update | - |
| article html file updated | 29 March 2019 18:17 CET | Update | - |
| article html file updated | 27 June 2018 09:55 CEST | Update | - |
| article html file updated | 23 April 2018 13:03 CEST | Original file | - |
| article pdf uploaded. | 23 April 2018 13:02 CEST | Version of Record | https://www.mdpi.com/2227-9091/6/2/43/pdf |
| article xml uploaded. | 23 April 2018 13:02 CEST | Update | https://www.mdpi.com/2227-9091/6/2/43/xml |
| article xml file uploaded | 23 April 2018 13:02 CEST | Original file | - |
