| article html file updated | 8 February 2020 03:56 CET | Update | https://www.mdpi.com/1422-0067/18/4/864 |
| article html file updated | 24 September 2019 09:50 CEST | Update | - |
| article html file updated | 4 May 2019 01:33 CEST | Update | - |
| article html file updated | 2 May 2017 06:16 CEST | Update | - |
| article html file updated | 21 April 2017 04:30 CEST | Update | - |
| article xml uploaded. | 21 April 2017 04:29 CEST | Update | https://www.mdpi.com/1422-0067/18/4/864/xml |
| article pdf uploaded. | 21 April 2017 04:29 CEST | Updated version of record | https://www.mdpi.com/1422-0067/18/4/864/pdf |
| article html file updated | 19 April 2017 14:35 CEST | Original file | - |
| article pdf uploaded. | 19 April 2017 14:33 CEST | Version of Record | https://www.mdpi.com/1422-0067/18/4/864/pdf-vor |
