| article html file updated | 9 February 2020 14:18 CET | Update | https://www.mdpi.com/2227-7080/6/2/42 |
| article html file updated | 2 October 2019 17:42 CEST | Update | - |
| article html file updated | 1 May 2019 02:33 CEST | Update | - |
| article html file updated | 17 April 2019 03:02 CEST | Update | - |
| article html file updated | 29 March 2019 16:47 CET | Update | - |
| article html file updated | 26 June 2018 04:59 CEST | Update | - |
| article html file updated | 18 April 2018 10:32 CEST | Original file | - |
| article pdf uploaded. | 18 April 2018 10:30 CEST | Version of Record | https://www.mdpi.com/2227-7080/6/2/42/pdf |
| article xml uploaded. | 18 April 2018 10:30 CEST | Update | https://www.mdpi.com/2227-7080/6/2/42/xml |
| article xml file uploaded | 18 April 2018 10:30 CEST | Original file | - |
