| article html file updated | 7 February 2020 21:06 CET | Update | https://www.mdpi.com/1996-1073/10/1/72 |
| article html file updated | 22 September 2019 19:37 CEST | Update | - |
| article html file updated | 4 May 2019 16:07 CEST | Update | - |
| article html file updated | 7 February 2017 09:52 CET | Update | - |
| article html file updated | 10 January 2017 12:11 CET | Original file | - |
| article xml uploaded. | 10 January 2017 12:10 CET | Update | https://www.mdpi.com/1996-1073/10/1/72/xml |
| article xml uploaded. | 10 January 2017 12:10 CET | Original file | - |
| article pdf uploaded. | 10 January 2017 12:10 CET | Version of Record | https://www.mdpi.com/1996-1073/10/1/72/pdf |
