| article html file updated | 8 February 2020 08:40 CET | Update | https://www.mdpi.com/2075-4701/7/6/226 |
| article html file updated | 25 September 2019 10:28 CEST | Update | - |
| article html file updated | 3 May 2019 16:43 CEST | Update | - |
| article html file updated | 28 June 2017 14:05 CEST | Update | - |
| article html file updated | 19 June 2017 11:57 CEST | Original file | - |
| article xml uploaded. | 19 June 2017 11:55 CEST | Update | https://www.mdpi.com/2075-4701/7/6/226/xml |
| article pdf uploaded. | 19 June 2017 11:55 CEST | Version of Record | https://www.mdpi.com/2075-4701/7/6/226/pdf |
