| article html file updated | 8 February 2020 01:30 CET | Update | https://www.mdpi.com/2073-8994/9/3/41 |
| article html file updated | 23 September 2019 20:00 CEST | Update | - |
| article html file updated | 4 May 2019 06:39 CEST | Update | - |
| article html file updated | 28 March 2017 03:28 CEST | Update | - |
| article html file updated | 16 March 2017 10:40 CET | Original file | - |
| article xml uploaded. | 16 March 2017 10:38 CET | Original file | https://www.mdpi.com/2073-8994/9/3/41/xml |
| article pdf uploaded. | 16 March 2017 10:38 CET | Updated version of record | https://www.mdpi.com/2073-8994/9/3/41/pdf |
| article pdf uploaded. | 15 March 2017 10:58 CET | Version of Record | https://www.mdpi.com/2073-8994/9/3/41/pdf-vor |
