| article html file updated | 7 February 2020 06:44 CET | Update | https://www.mdpi.com/1099-4300/18/4/117 |
| article html file updated | 5 May 2019 19:45 CEST | Update | N/A |
| article html file updated | 27 March 2019 00:53 CET | Update | N/A |
| article html file updated | 27 April 2016 11:17 CEST | Update | N/A |
| article html file updated | 1 April 2016 11:32 CEST | Original file | N/A |
| article xml uploaded. | 1 April 2016 11:31 CEST | Original file | https://www.mdpi.com/1099-4300/18/4/117/xml |
| article pdf uploaded. | 1 April 2016 11:31 CEST | Version of Record | https://www.mdpi.com/1099-4300/18/4/117/pdf |
