| article html file updated | 8 February 2020 03:29 CET | Update | https://www.mdpi.com/1422-0067/18/4/815 |
| article html file updated | 24 September 2019 07:07 CEST | Update | - |
| article html file updated | 4 May 2019 02:24 CEST | Update | - |
| article html file updated | 2 May 2017 06:06 CEST | Update | - |
| article html file updated | 13 April 2017 11:04 CEST | Original file | - |
| article xml uploaded. | 13 April 2017 11:03 CEST | Update | https://www.mdpi.com/1422-0067/18/4/815/xml |
| article pdf uploaded. | 13 April 2017 11:03 CEST | Version of Record | https://www.mdpi.com/1422-0067/18/4/815/pdf |
