| article html file updated | 9 February 2020 09:47 CET | Update | https://www.mdpi.com/2075-4450/9/1/33 |
| article html file updated | 1 October 2019 14:49 CEST | Update | N/A |
| article html file updated | 1 May 2019 11:52 CEST | Update | N/A |
| article html file updated | 17 April 2019 11:38 CEST | Update | N/A |
| article html file updated | 29 March 2019 06:26 CET | Update | N/A |
| article html file updated | 27 March 2018 14:34 CEST | Update | N/A |
| article html file updated | 14 March 2018 16:34 CET | Original file | N/A |
| article xml uploaded. | 14 March 2018 10:12 CET | Original file | https://www.mdpi.com/2075-4450/9/1/33/xml |
| article pdf uploaded. | 14 March 2018 10:12 CET | Version of Record | https://www.mdpi.com/2075-4450/9/1/33/pdf |
