| article html file updated | 7 February 2020 21:56 CET | Update | https://www.mdpi.com/1422-0067/18/1/216 |
| article html file updated | 22 September 2019 23:58 CEST | Update | - |
| article html file updated | 4 May 2019 14:10 CEST | Update | - |
| article html file updated | 8 February 2017 11:14 CET | Update | - |
| article html file updated | 21 January 2017 09:04 CET | Original file | - |
| article xml uploaded. | 21 January 2017 09:03 CET | Original file | https://www.mdpi.com/1422-0067/18/1/216/xml |
| article pdf uploaded. | 21 January 2017 09:03 CET | Version of Record | https://www.mdpi.com/1422-0067/18/1/216/pdf |
