| article html file updated | 9 February 2020 00:06 CET | Update | https://www.mdpi.com/2227-7390/5/4/80 |
| article html file updated | 29 September 2019 05:19 CEST | Update | N/A |
| article html file updated | 2 May 2019 08:32 CEST | Update | N/A |
| article html file updated | 18 April 2019 06:18 CEST | Update | N/A |
| article html file updated | 2 January 2018 11:37 CET | Update | N/A |
| article html file updated | 14 December 2017 14:47 CET | Original file | N/A |
| article xml uploaded. | 14 December 2017 14:46 CET | Original file | https://www.mdpi.com/2227-7390/5/4/80/xml |
| article pdf uploaded. | 14 December 2017 14:46 CET | Version of Record | https://www.mdpi.com/2227-7390/5/4/80/pdf |
