| article html file updated | 7 February 2020 21:10 CET | Update | https://www.mdpi.com/2227-7382/5/1/2 |
| article html file updated | 4 May 2019 15:58 CEST | Update | N/A |
| article html file updated | 30 March 2017 12:01 CEST | Update | N/A |
| article pdf uploaded. | 12 January 2017 11:09 CET | Updated version of record | https://www.mdpi.com/2227-7382/5/1/2/pdf |
| article html file updated | 11 January 2017 14:10 CET | Original file | N/A |
| article xml uploaded. | 11 January 2017 14:09 CET | Original file | https://www.mdpi.com/2227-7382/5/1/2/xml |
| article pdf uploaded. | 11 January 2017 14:09 CET | Version of Record | https://www.mdpi.com/2227-7382/5/1/2/pdf-vor |
