| article html file updated | 8 February 2020 16:18 CET | Update | https://www.mdpi.com/1422-0067/18/9/1989 |
| article html file updated | 27 September 2019 04:04 CEST | Update | - |
| article html file updated | 3 May 2019 01:47 CEST | Update | - |
| article html file updated | 30 September 2017 12:25 CEST | Update | - |
| article html file updated | 20 September 2017 11:46 CEST | Update | - |
| article xml uploaded. | 20 September 2017 11:44 CEST | Update | https://www.mdpi.com/1422-0067/18/9/1989/xml |
| article pdf uploaded. | 20 September 2017 11:44 CEST | Updated version of record | https://www.mdpi.com/1422-0067/18/9/1989/pdf |
| article html file updated | 18 September 2017 05:01 CEST | Original file | - |
| article xml uploaded. | 18 September 2017 05:00 CEST | Original file | - |
| article pdf uploaded. | 18 September 2017 05:00 CEST | Updated version of record | https://www.mdpi.com/1422-0067/18/9/1989/pdf-vor |
| article pdf uploaded. | 15 September 2017 12:46 CEST | Version of Record | https://www.mdpi.com/1422-0067/18/9/1989/pdf-vor |
