| article html file updated | 8 February 2020 08:50 CET | Update | https://www.mdpi.com/2075-4701/7/6/228 |
| article html file updated | 25 September 2019 11:17 CEST | Update | N/A |
| article html file updated | 3 May 2019 16:25 CEST | Update | N/A |
| article html file updated | 28 June 2017 14:06 CEST | Update | N/A |
| article html file updated | 21 June 2017 16:15 CEST | Original file | N/A |
| article xml uploaded. | 21 June 2017 16:13 CEST | Original file | https://www.mdpi.com/2075-4701/7/6/228/xml |
| article pdf uploaded. | 21 June 2017 16:13 CEST | Version of Record | https://www.mdpi.com/2075-4701/7/6/228/pdf |
