| article html file updated | 9 February 2020 03:03 CET | Update | https://www.mdpi.com/2218-0532/86/1/4 |
| article html file updated | 2 May 2019 02:15 CEST | Update | - |
| article html file updated | 18 April 2019 00:30 CEST | Update | - |
| article html file updated | 28 March 2019 15:34 CET | Update | - |
| article html file updated | 27 March 2018 14:48 CEST | Update | - |
| article html file updated | 15 January 2018 09:10 CET | Original file | - |
| article xml uploaded. | 15 January 2018 09:09 CET | Update | https://www.mdpi.com/2218-0532/86/1/4/xml |
| article pdf uploaded. | 15 January 2018 09:09 CET | Updated version of record | https://www.mdpi.com/2218-0532/86/1/4/pdf |
| article xml uploaded. | 15 January 2018 07:07 CET | Original file | - |
| article pdf uploaded. | 15 January 2018 07:07 CET | Version of Record | - |
