| article html file updated | 8 February 2020 08:50 CET | Update | https://www.mdpi.com/2075-4701/7/6/229 |
| article html file updated | 25 September 2019 11:19 CEST | Update | - |
| article html file updated | 3 May 2019 16:25 CEST | Update | - |
| article html file updated | 28 June 2017 14:06 CEST | Update | - |
| article html file updated | 21 June 2017 15:52 CEST | Original file | - |
| article xml uploaded. | 21 June 2017 15:51 CEST | Update | https://www.mdpi.com/2075-4701/7/6/229/xml |
| article pdf uploaded. | 21 June 2017 15:50 CEST | Version of Record | https://www.mdpi.com/2075-4701/7/6/229/pdf |
