| article html file updated | 8 February 2020 03:30 CET | Update | https://www.mdpi.com/1422-0067/18/4/822 |
| article html file updated | 24 September 2019 07:13 CEST | Update | - |
| article html file updated | 4 May 2019 02:22 CEST | Update | - |
| article html file updated | 2 May 2017 06:08 CEST | Update | - |
| article html file updated | 13 April 2017 11:09 CEST | Original file | - |
| article xml uploaded. | 13 April 2017 11:08 CEST | Original file | https://www.mdpi.com/1422-0067/18/4/822/xml |
| article pdf uploaded. | 13 April 2017 11:08 CEST | Version of Record | https://www.mdpi.com/1422-0067/18/4/822/pdf |
