| article html file updated | 7 February 2020 23:04 CET | Update | https://www.mdpi.com/2076-3425/7/2/19 |
| article html file updated | 23 September 2019 06:10 CEST | Update | N/A |
| article html file updated | 4 May 2019 11:53 CEST | Update | N/A |
| article html file updated | 2 March 2017 08:51 CET | Update | N/A |
| article html file updated | 10 February 2017 12:55 CET | Original file | N/A |
| article xml uploaded. | 10 February 2017 12:54 CET | Original file | https://www.mdpi.com/2076-3425/7/2/19/xml |
| article pdf uploaded. | 10 February 2017 12:54 CET | Version of Record | https://www.mdpi.com/2076-3425/7/2/19/pdf |
