| article html file updated | 7 February 2020 21:20 CET | Update | https://www.mdpi.com/2076-3417/7/1/69 |
| article html file updated | 22 September 2019 20:41 CEST | Update | N/A |
| article html file updated | 4 May 2019 15:35 CEST | Update | N/A |
| article html file updated | 8 February 2017 09:36 CET | Update | N/A |
| article html file updated | 12 January 2017 14:11 CET | Original file | N/A |
| article xml uploaded. | 12 January 2017 14:10 CET | Update | https://www.mdpi.com/2076-3417/7/1/69/xml |
| article xml uploaded. | 12 January 2017 14:10 CET | Original file | N/A |
| article pdf uploaded. | 12 January 2017 14:10 CET | Version of Record | https://www.mdpi.com/2076-3417/7/1/69/pdf |
