| article html file updated | 9 February 2020 05:24 CET | Update | https://www.mdpi.com/1999-4907/9/2/75 |
| article html file updated | 30 September 2019 11:59 CEST | Update | - |
| article html file updated | 1 May 2019 21:15 CEST | Update | - |
| article html file updated | 17 April 2019 20:09 CEST | Update | - |
| article html file updated | 28 March 2019 20:39 CET | Update | - |
| article html file updated | 14 March 2018 09:27 CET | Update | - |
| article html file updated | 9 February 2018 04:12 CET | Update | - |
| article xml uploaded. | 9 February 2018 04:11 CET | Update | https://www.mdpi.com/1999-4907/9/2/75/xml |
| article xml uploaded. | 9 February 2018 04:11 CET | Update | - |
| article pdf uploaded. | 9 February 2018 04:11 CET | Updated version of record | https://www.mdpi.com/1999-4907/9/2/75/pdf |
| article html file updated | 3 February 2018 07:21 CET | Original file | - |
| article xml uploaded. | 3 February 2018 07:20 CET | Update | - |
| article xml uploaded. | 3 February 2018 07:20 CET | Original file | - |
| article pdf uploaded. | 3 February 2018 07:20 CET | Version of Record | https://www.mdpi.com/1999-4907/9/2/75/pdf-vor |
