| article html file updated | 8 February 2020 02:38 CET | Update | https://www.mdpi.com/1422-0067/18/4/743 |
| article html file updated | 24 September 2019 02:27 CEST | Update | - |
| article html file updated | 4 May 2019 04:12 CEST | Update | - |
| article html file updated | 2 May 2017 05:54 CEST | Update | - |
| article html file updated | 4 April 2017 11:23 CEST | Original file | - |
| article xml uploaded. | 4 April 2017 11:22 CEST | Original file | https://www.mdpi.com/1422-0067/18/4/743/xml |
| article pdf uploaded. | 4 April 2017 11:22 CEST | Updated version of record | https://www.mdpi.com/1422-0067/18/4/743/pdf |
| article pdf uploaded. | 31 March 2017 12:15 CEST | Version of Record | https://www.mdpi.com/1422-0067/18/4/743/pdf-vor |
