| article html file updated | 7 February 2020 20:17 CET | Update | https://www.mdpi.com/2071-1050/9/1/27 |
| article html file updated | 22 September 2019 15:08 CEST | Update | N/A |
| article html file updated | 4 May 2019 17:51 CEST | Update | N/A |
| article html file updated | 7 February 2017 09:42 CET | Update | N/A |
| article html file updated | 28 December 2016 10:08 CET | Original file | N/A |
| article xml uploaded. | 28 December 2016 10:07 CET | Original file | https://www.mdpi.com/2071-1050/9/1/27/xml |
| article pdf uploaded. | 28 December 2016 10:07 CET | Updated version of record | https://www.mdpi.com/2071-1050/9/1/27/pdf |
| article pdf uploaded. | 25 December 2016 06:34 CET | Version of Record | https://www.mdpi.com/2071-1050/9/1/27/pdf-vor |
