| article html file updated | 9 February 2020 21:40 CET | Update | https://www.mdpi.com/2227-9067/5/6/77 |
| article html file updated | 4 October 2019 15:30 CEST | Update | - |
| article html file updated | 30 April 2019 10:25 CEST | Update | - |
| article html file updated | 16 April 2019 10:50 CEST | Update | - |
| article html file updated | 16 April 2019 05:48 CEST | Update | - |
| article html file updated | 30 March 2019 11:17 CET | Update | - |
| article html file updated | 26 June 2018 04:53 CEST | Update | - |
| article html file updated | 15 June 2018 12:18 CEST | Original file | - |
| article pdf uploaded. | 15 June 2018 12:17 CEST | Version of Record | https://www.mdpi.com/2227-9067/5/6/77/pdf |
| article xml uploaded. | 15 June 2018 12:17 CEST | Update | https://www.mdpi.com/2227-9067/5/6/77/xml |
| article xml file uploaded | 15 June 2018 12:17 CEST | Original file | - |
