| article html file updated | 7 February 2020 06:39 CET | Update | https://www.mdpi.com/2225-1154/4/2/19 |
| article html file updated | 5 May 2019 19:55 CEST | Update | N/A |
| article html file updated | 27 March 2019 00:44 CET | Update | N/A |
| article html file updated | 1 July 2016 10:39 CEST | Update | N/A |
| article html file updated | 31 March 2016 11:01 CEST | Original file | N/A |
| article xml uploaded. | 31 March 2016 11:00 CEST | Original file | https://www.mdpi.com/2225-1154/4/2/19/xml |
| article pdf uploaded. | 31 March 2016 11:00 CEST | Version of Record | https://www.mdpi.com/2225-1154/4/2/19/pdf |
