| article html file updated | 7 February 2020 23:50 CET | Update | https://www.mdpi.com/1996-1073/10/2/256 |
| article html file updated | 23 September 2019 10:28 CEST | Update | - |
| article html file updated | 4 May 2019 10:22 CEST | Update | - |
| article html file updated | 28 February 2017 10:47 CET | Update | - |
| article html file updated | 21 February 2017 11:24 CET | Original file | - |
| article xml uploaded. | 21 February 2017 11:23 CET | Original file | https://www.mdpi.com/1996-1073/10/2/256/xml |
| article pdf uploaded. | 21 February 2017 11:23 CET | Updated version of record | https://www.mdpi.com/1996-1073/10/2/256/pdf |
| article pdf uploaded. | 20 February 2017 15:22 CET | Version of Record | https://www.mdpi.com/1996-1073/10/2/256/pdf-vor |
