| article html file updated | 8 February 2020 00:38 CET | Update | https://www.mdpi.com/2227-7382/5/1/8 |
| article html file updated | 23 September 2019 15:00 CEST | Update | N/A |
| article html file updated | 4 May 2019 08:34 CEST | Update | N/A |
| article html file updated | 30 March 2017 12:01 CEST | Update | N/A |
| article html file updated | 2 March 2017 14:47 CET | Original file | N/A |
| article xml uploaded. | 2 March 2017 14:46 CET | Original file | https://www.mdpi.com/2227-7382/5/1/8/xml |
| article pdf uploaded. | 2 March 2017 14:46 CET | Version of Record | https://www.mdpi.com/2227-7382/5/1/8/pdf |
