| article html file updated | 7 February 2020 21:47 CET | Update | https://www.mdpi.com/1422-0067/18/1/203 |
| article html file updated | 22 September 2019 23:06 CEST | Update | - |
| article html file updated | 4 May 2019 14:31 CEST | Update | - |
| article html file updated | 8 February 2017 11:11 CET | Update | - |
| article html file updated | 19 January 2017 10:41 CET | Original file | - |
| article xml uploaded. | 19 January 2017 10:40 CET | Original file | https://www.mdpi.com/1422-0067/18/1/203/xml |
| article pdf uploaded. | 19 January 2017 10:40 CET | Version of Record | https://www.mdpi.com/1422-0067/18/1/203/pdf |
