| article html file updated | 8 February 2020 13:37 CET | Update | https://www.mdpi.com/2073-8994/9/8/156 |
| article html file updated | 26 September 2019 13:31 CEST | Update | - |
| article html file updated | 3 May 2019 06:48 CEST | Update | - |
| article html file updated | 27 March 2019 20:59 CET | Update | - |
| article html file updated | 30 August 2017 09:52 CEST | Update | - |
| article html file updated | 22 August 2017 04:19 CEST | Original file | - |
| article xml uploaded. | 22 August 2017 04:18 CEST | Original file | https://www.mdpi.com/2073-8994/9/8/156/xml |
| article pdf uploaded. | 22 August 2017 04:18 CEST | Updated version of record | https://www.mdpi.com/2073-8994/9/8/156/pdf |
| article pdf uploaded. | 15 August 2017 13:39 CEST | Version of Record | https://www.mdpi.com/2073-8994/9/8/156/pdf-vor |
