| article html file updated | 7 February 2020 05:56 CET | Update | https://www.mdpi.com/2227-7382/4/1/12 |
| article html file updated | 5 May 2019 21:23 CEST | Update | N/A |
| article html file updated | 26 March 2019 23:31 CET | Update | N/A |
| article html file updated | 18 May 2016 12:45 CEST | Original file | N/A |
| article xml uploaded. | 15 March 2016 12:54 CET | Original file | https://www.mdpi.com/2227-7382/4/1/12/xml |
| article pdf uploaded. | 15 March 2016 12:54 CET | Version of Record | https://www.mdpi.com/2227-7382/4/1/12/pdf |
