| article html file updated | 9 February 2020 05:22 CET | Update | https://www.mdpi.com/1996-1073/11/2/351 |
| article html file updated | 30 September 2019 11:44 CEST | Update | - |
| article html file updated | 1 May 2019 21:20 CEST | Update | - |
| article html file updated | 17 April 2019 20:13 CEST | Update | - |
| article html file updated | 28 March 2019 20:34 CET | Update | - |
| article html file updated | 14 March 2018 15:54 CET | Update | - |
| article html file updated | 2 February 2018 15:22 CET | Original file | - |
| article xml uploaded. | 2 February 2018 15:21 CET | Update | https://www.mdpi.com/1996-1073/11/2/351/xml |
| article xml uploaded. | 2 February 2018 15:21 CET | Original file | - |
| article pdf uploaded. | 2 February 2018 15:21 CET | Version of Record | https://www.mdpi.com/1996-1073/11/2/351/pdf |
