| article html file updated | 8 February 2020 17:33 CET | Update | https://www.mdpi.com/2075-4450/8/4/106 |
| article html file updated | 27 September 2019 11:34 CEST | Update | N/A |
| article html file updated | 2 May 2019 23:14 CEST | Update | N/A |
| article html file updated | 2 January 2018 12:39 CET | Update | N/A |
| article html file updated | 12 October 2017 12:44 CEST | Original file | N/A |
| article xml uploaded. | 12 October 2017 12:43 CEST | Original file | https://www.mdpi.com/2075-4450/8/4/106/xml |
| article pdf uploaded. | 12 October 2017 12:43 CEST | Updated version of record | https://www.mdpi.com/2075-4450/8/4/106/pdf |
| article pdf uploaded. | 30 September 2017 10:30 CEST | Version of Record | https://www.mdpi.com/2075-4450/8/4/106/pdf-vor |
