| article html file updated | 7 February 2020 20:44 CET | Update | https://www.mdpi.com/1422-0067/18/1/86 |
| article html file updated | 22 September 2019 17:34 CEST | Update | - |
| article html file updated | 4 May 2019 16:55 CEST | Update | - |
| article html file updated | 8 February 2017 10:53 CET | Update | - |
| article html file updated | 4 January 2017 06:55 CET | Original file | - |
| article xml uploaded. | 4 January 2017 06:54 CET | Original file | https://www.mdpi.com/1422-0067/18/1/86/xml |
| article pdf uploaded. | 4 January 2017 06:54 CET | Version of Record | https://www.mdpi.com/1422-0067/18/1/86/pdf |
