| article html file updated | 8 February 2020 08:54 CET | Update | https://www.mdpi.com/1999-4915/9/6/158 |
| article html file updated | 25 September 2019 11:40 CEST | Update | N/A |
| article html file updated | 3 May 2019 16:17 CEST | Update | N/A |
| article html file updated | 29 June 2017 12:03 CEST | Update | N/A |
| article html file updated | 22 June 2017 11:19 CEST | Original file | N/A |
| article xml uploaded. | 22 June 2017 11:18 CEST | Original file | https://www.mdpi.com/1999-4915/9/6/158/xml |
| article pdf uploaded. | 22 June 2017 11:18 CEST | Updated version of record | https://www.mdpi.com/1999-4915/9/6/158/pdf |
| article pdf uploaded. | 21 June 2017 15:21 CEST | Version of Record | https://www.mdpi.com/1999-4915/9/6/158/pdf-vor |
