| article html file updated | 8 February 2020 20:59 CET | Update | https://www.mdpi.com/2304-6740/5/4/77 |
| article html file updated | 28 September 2019 10:10 CEST | Update | - |
| article html file updated | 2 May 2019 15:27 CEST | Update | - |
| article html file updated | 2 January 2018 13:54 CET | Update | - |
| article html file updated | 12 November 2017 11:29 CET | Original file | - |
| article xml uploaded. | 12 November 2017 11:28 CET | Update | https://www.mdpi.com/2304-6740/5/4/77/xml |
| article xml uploaded. | 12 November 2017 11:28 CET | Original file | - |
| article pdf uploaded. | 12 November 2017 11:28 CET | Version of Record | https://www.mdpi.com/2304-6740/5/4/77/pdf |
