| article html file updated | 7 February 2020 19:54 CET | Update | https://www.mdpi.com/1422-0067/17/12/2135 |
| article html file updated | 22 September 2019 13:00 CEST | Update | - |
| article html file updated | 4 May 2019 18:38 CEST | Update | - |
| article html file updated | 27 December 2016 11:20 CET | Update | - |
| article html file updated | 21 December 2016 12:27 CET | Original file | - |
| article xml uploaded. | 21 December 2016 12:26 CET | Original file | https://www.mdpi.com/1422-0067/17/12/2135/xml |
| article pdf uploaded. | 21 December 2016 12:26 CET | Updated version of record | https://www.mdpi.com/1422-0067/17/12/2135/pdf |
| article pdf uploaded. | 18 December 2016 11:56 CET | Version of Record | https://www.mdpi.com/1422-0067/17/12/2135/pdf-vor |
