| article html file updated | 7 February 2020 21:08 CET | Update | https://www.mdpi.com/1422-0067/18/1/122 |
| article html file updated | 4 May 2019 16:03 CEST | Update | - |
| article html file updated | 8 February 2017 10:59 CET | Update | - |
| article html file updated | 10 January 2017 14:34 CET | Original file | - |
| article xml uploaded. | 10 January 2017 14:33 CET | Original file | https://www.mdpi.com/1422-0067/18/1/122/xml |
| article pdf uploaded. | 10 January 2017 14:33 CET | Version of Record | https://www.mdpi.com/1422-0067/18/1/122/pdf |
