| article html file updated | 7 February 2020 21:58 CET | Update | https://www.mdpi.com/1422-0067/18/1/217 |
| article html file updated | 23 September 2019 00:07 CEST | Update | - |
| article html file updated | 4 May 2019 14:06 CEST | Update | - |
| article html file updated | 8 February 2017 11:14 CET | Update | - |
| article html file updated | 22 January 2017 08:50 CET | Original file | - |
| article xml uploaded. | 22 January 2017 08:49 CET | Original file | https://www.mdpi.com/1422-0067/18/1/217/xml |
| article pdf uploaded. | 22 January 2017 08:49 CET | Version of Record | https://www.mdpi.com/1422-0067/18/1/217/pdf |
