| article html file updated | 8 February 2020 07:07 CET | Update | https://www.mdpi.com/1422-0067/18/6/1172 |
| article html file updated | 25 September 2019 02:25 CEST | Update | - |
| article html file updated | 3 May 2019 19:40 CEST | Update | - |
| article html file updated | 28 June 2017 13:24 CEST | Update | - |
| article html file updated | 1 June 2017 13:15 CEST | Original file | - |
| article xml uploaded. | 1 June 2017 13:14 CEST | Original file | https://www.mdpi.com/1422-0067/18/6/1172/xml |
| article pdf uploaded. | 1 June 2017 13:14 CEST | Updated version of record | https://www.mdpi.com/1422-0067/18/6/1172/pdf |
| article pdf uploaded. | 31 May 2017 12:31 CEST | Version of Record | https://www.mdpi.com/1422-0067/18/6/1172/pdf-vor |
