| article html file updated | 8 February 2020 02:28 CET | Update | https://www.mdpi.com/2073-8994/9/4/47 |
| article html file updated | 24 September 2019 01:31 CEST | Update | - |
| article html file updated | 4 May 2019 04:32 CEST | Update | - |
| article html file updated | 28 April 2017 07:14 CEST | Update | - |
| article html file updated | 30 March 2017 10:18 CEST | Update | - |
| article xml uploaded. | 30 March 2017 10:17 CEST | Update | https://www.mdpi.com/2073-8994/9/4/47/xml |
| article pdf uploaded. | 30 March 2017 10:17 CEST | Updated version of record | https://www.mdpi.com/2073-8994/9/4/47/pdf |
| article html file updated | 30 March 2017 10:10 CEST | Original file | - |
| article pdf uploaded. | 30 March 2017 10:09 CEST | Updated version of record | https://www.mdpi.com/2073-8994/9/4/47/pdf-vor |
| article pdf uploaded. | 29 March 2017 17:21 CEST | Version of Record | https://www.mdpi.com/2073-8994/9/4/47/pdf-vor |
