| article html file updated | 7 February 2020 23:37 CET | Update | https://www.mdpi.com/2075-4450/8/1/23 |
| article html file updated | 23 September 2019 09:09 CEST | Update | N/A |
| article html file updated | 4 May 2019 10:49 CEST | Update | N/A |
| article html file updated | 30 March 2017 11:02 CEST | Update | N/A |
| article html file updated | 17 February 2017 09:20 CET | Original file | N/A |
| article xml uploaded. | 17 February 2017 09:19 CET | Original file | https://www.mdpi.com/2075-4450/8/1/23/xml |
| article pdf uploaded. | 17 February 2017 09:19 CET | Version of Record | https://www.mdpi.com/2075-4450/8/1/23/pdf |
