| article html file updated | 8 February 2020 08:10 CET | Update | https://www.mdpi.com/1999-4893/10/2/69 |
| article html file updated | 25 September 2019 07:46 CEST | Update | - |
| article html file updated | 3 May 2019 17:40 CEST | Update | - |
| article html file updated | 28 June 2017 12:27 CEST | Update | - |
| article html file updated | 16 June 2017 06:31 CEST | Original file | - |
| article xml uploaded. | 16 June 2017 06:29 CEST | Original file | https://www.mdpi.com/1999-4893/10/2/69/xml |
| article pdf uploaded. | 16 June 2017 06:29 CEST | Updated version of record | https://www.mdpi.com/1999-4893/10/2/69/pdf |
| article pdf uploaded. | 13 June 2017 13:48 CEST | Version of Record | https://www.mdpi.com/1999-4893/10/2/69/pdf-vor |
