| article html file updated | 7 February 2020 14:21 CET | Update | https://www.mdpi.com/2227-7080/4/3/27 |
| article html file updated | 5 May 2019 05:16 CEST | Update | N/A |
| article html file updated | 27 March 2019 15:50 CET | Update | N/A |
| article html file updated | 2 September 2016 09:46 CEST | Original file | N/A |
| article xml uploaded. | 2 September 2016 09:44 CEST | Update | https://www.mdpi.com/2227-7080/4/3/27/xml |
| article xml uploaded. | 2 September 2016 09:44 CEST | Original file | N/A |
| article pdf uploaded. | 2 September 2016 09:44 CEST | Version of Record | https://www.mdpi.com/2227-7080/4/3/27/pdf |
