| article html file updated | 7 February 2020 05:06 CET | Update | https://www.mdpi.com/2227-9032/4/1/16 |
| article html file updated | 5 May 2019 23:06 CEST | Update | N/A |
| article html file updated | 26 March 2019 21:53 CET | Update | N/A |
| article html file updated | 18 May 2016 12:21 CEST | Original file | N/A |
| article pdf uploaded. | 26 February 2016 11:20 CET | Version of Record | https://www.mdpi.com/2227-9032/4/1/16/pdf |
| article xml uploaded. | 26 February 2016 11:20 CET | Original file | https://www.mdpi.com/2227-9032/4/1/16/xml |
