| article html file updated | 8 February 2020 20:08 CET | Update | https://www.mdpi.com/2073-8994/9/11/259 |
| article html file updated | 28 September 2019 04:28 CEST | Update | N/A |
| article html file updated | 2 May 2019 17:24 CEST | Update | N/A |
| article html file updated | 30 November 2017 08:23 CET | Update | N/A |
| article html file updated | 4 November 2017 10:46 CET | Original file | N/A |
| article xml uploaded. | 4 November 2017 10:45 CET | Original file | https://www.mdpi.com/2073-8994/9/11/259/xml |
| article pdf uploaded. | 4 November 2017 10:45 CET | Updated version of record | https://www.mdpi.com/2073-8994/9/11/259/pdf |
| article pdf uploaded. | 2 November 2017 09:55 CET | Version of Record | https://www.mdpi.com/2073-8994/9/11/259/pdf-vor |
