| article html file updated | 8 February 2020 08:44 CET | Update | https://www.mdpi.com/2075-4701/7/6/227 |
| article html file updated | 25 September 2019 10:43 CEST | Update | - |
| article html file updated | 3 May 2019 16:37 CEST | Update | - |
| article html file updated | 28 June 2017 14:06 CEST | Update | - |
| article html file updated | 20 June 2017 08:55 CEST | Original file | - |
| article xml uploaded. | 20 June 2017 08:53 CEST | Update | https://www.mdpi.com/2075-4701/7/6/227/xml |
| article pdf uploaded. | 20 June 2017 08:53 CEST | Version of Record | https://www.mdpi.com/2075-4701/7/6/227/pdf |
