| article html file updated | 7 February 2020 23:59 CET | Update | https://www.mdpi.com/1422-0067/18/2/470 |
| article html file updated | 23 September 2019 11:12 CEST | Update | - |
| article html file updated | 4 May 2019 10:04 CEST | Update | - |
| article html file updated | 2 March 2017 10:19 CET | Update | - |
| article html file updated | 22 February 2017 10:26 CET | Original file | - |
| article xml uploaded. | 22 February 2017 10:25 CET | Update | https://www.mdpi.com/1422-0067/18/2/470/xml |
| article xml uploaded. | 22 February 2017 10:25 CET | Original file | - |
| article pdf uploaded. | 22 February 2017 10:25 CET | Version of Record | https://www.mdpi.com/1422-0067/18/2/470/pdf |
