| article html file updated | 8 February 2020 08:42 CET | Update | https://www.mdpi.com/1422-0067/18/6/1309 |
| article html file updated | 25 September 2019 10:38 CEST | Update | - |
| article html file updated | 3 May 2019 16:40 CEST | Update | - |
| article html file updated | 28 June 2017 13:42 CEST | Update | - |
| article html file updated | 20 June 2017 04:23 CEST | Original file | - |
| article xml uploaded. | 20 June 2017 04:22 CEST | Original file | https://www.mdpi.com/1422-0067/18/6/1309/xml |
| article pdf uploaded. | 20 June 2017 04:22 CEST | Updated version of record | https://www.mdpi.com/1422-0067/18/6/1309/pdf |
| article pdf uploaded. | 19 June 2017 13:10 CEST | Version of Record | https://www.mdpi.com/1422-0067/18/6/1309/pdf-vor |
