| article html file updated | 7 February 2020 22:56 CET | Update | https://www.mdpi.com/1996-1073/10/2/189 |
| article html file updated | 23 September 2019 05:28 CEST | Update | - |
| article html file updated | 4 May 2019 12:09 CEST | Update | - |
| article html file updated | 28 February 2017 10:29 CET | Update | - |
| article html file updated | 13 February 2017 03:56 CET | Original file | - |
| article xml uploaded. | 13 February 2017 03:55 CET | Update | https://www.mdpi.com/1996-1073/10/2/189/xml |
| article xml uploaded. | 13 February 2017 03:55 CET | Original file | - |
| article pdf uploaded. | 13 February 2017 03:55 CET | Updated version of record | https://www.mdpi.com/1996-1073/10/2/189/pdf |
| article pdf uploaded. | 8 February 2017 17:09 CET | Version of Record | https://www.mdpi.com/1996-1073/10/2/189/pdf-vor |
