| article html file updated | 7 February 2020 23:32 CET | Update | https://www.mdpi.com/1422-0067/18/2/428 |
| article html file updated | 23 September 2019 08:43 CEST | Update | - |
| article html file updated | 4 May 2019 10:58 CEST | Update | - |
| article html file updated | 2 March 2017 10:14 CET | Update | - |
| article html file updated | 16 February 2017 10:38 CET | Original file | - |
| article xml uploaded. | 16 February 2017 10:37 CET | Original file | https://www.mdpi.com/1422-0067/18/2/428/xml |
| article pdf uploaded. | 16 February 2017 10:37 CET | Version of Record | https://www.mdpi.com/1422-0067/18/2/428/pdf |
