| article html file updated | 7 February 2020 08:07 CET | Update | https://www.mdpi.com/2227-7390/4/2/28 |
| article html file updated | 5 May 2019 16:55 CEST | Update | N/A |
| article html file updated | 27 March 2019 03:36 CET | Update | N/A |
| article html file updated | 4 July 2016 06:17 CEST | Update | N/A |
| article html file updated | 3 May 2016 13:34 CEST | Original file | N/A |
| article xml uploaded. | 3 May 2016 13:33 CEST | Original file | https://www.mdpi.com/2227-7390/4/2/28/xml |
| article pdf uploaded. | 3 May 2016 13:33 CEST | Version of Record | https://www.mdpi.com/2227-7390/4/2/28/pdf |
