| article html file updated | 7 February 2020 22:33 CET | Update | https://www.mdpi.com/1999-4893/10/1/23 |
| article html file updated | 23 September 2019 03:14 CEST | Update | - |
| article html file updated | 4 May 2019 12:58 CEST | Update | - |
| article html file updated | 28 March 2017 11:53 CEST | Update | - |
| article html file updated | 16 February 2017 07:16 CET | Original file | - |
| article xml uploaded. | 16 February 2017 07:14 CET | Original file | https://www.mdpi.com/1999-4893/10/1/23/xml |
| article pdf uploaded. | 16 February 2017 07:14 CET | Updated version of record | https://www.mdpi.com/1999-4893/10/1/23/pdf |
| article pdf uploaded. | 1 February 2017 09:48 CET | Version of Record | https://www.mdpi.com/1999-4893/10/1/23/pdf-vor |
