| article html file updated | 7 February 2020 22:41 CET | Update | https://www.mdpi.com/2076-3417/7/2/146 |
| article html file updated | 23 September 2019 04:02 CEST | Update | N/A |
| article html file updated | 4 May 2019 12:40 CEST | Update | N/A |
| article html file updated | 1 March 2017 04:30 CET | Update | N/A |
| article html file updated | 4 February 2017 12:05 CET | Original file | N/A |
| article xml uploaded. | 4 February 2017 12:04 CET | Update | https://www.mdpi.com/2076-3417/7/2/146/xml |
| article xml uploaded. | 4 February 2017 12:04 CET | Original file | N/A |
| article pdf uploaded. | 4 February 2017 12:04 CET | Version of Record | https://www.mdpi.com/2076-3417/7/2/146/pdf |
