| article html file updated | 8 February 2020 02:28 CET | Update | https://www.mdpi.com/1422-0067/18/4/723 |
| article html file updated | 24 September 2019 01:30 CEST | Update | - |
| article html file updated | 4 May 2019 04:33 CEST | Update | - |
| article html file updated | 2 May 2017 05:51 CEST | Update | - |
| article html file updated | 29 March 2017 17:10 CEST | Original file | - |
| article xml uploaded. | 29 March 2017 17:09 CEST | Original file | https://www.mdpi.com/1422-0067/18/4/723/xml |
| article pdf uploaded. | 29 March 2017 17:09 CEST | Version of Record | https://www.mdpi.com/1422-0067/18/4/723/pdf |
