| article html file updated | 8 February 2020 03:05 CET | Update | https://www.mdpi.com/1422-0067/18/4/778 |
| article html file updated | 24 September 2019 05:00 CEST | Update | - |
| article html file updated | 4 May 2019 03:12 CEST | Update | - |
| article html file updated | 2 May 2017 05:59 CEST | Update | - |
| article html file updated | 10 April 2017 05:05 CEST | Update | - |
| article xml uploaded. | 10 April 2017 05:04 CEST | Update | https://www.mdpi.com/1422-0067/18/4/778/xml |
| article pdf uploaded. | 10 April 2017 05:04 CEST | Updated version of record | https://www.mdpi.com/1422-0067/18/4/778/pdf |
| article html file updated | 7 April 2017 11:06 CEST | Original file | - |
| article pdf uploaded. | 7 April 2017 11:05 CEST | Version of Record | https://www.mdpi.com/1422-0067/18/4/778/pdf-vor |
