| article html file updated | 7 February 2020 11:42 CET | Update | https://www.mdpi.com/2079-9268/6/3/12 |
| article html file updated | 5 May 2019 10:08 CEST | Update | - |
| article html file updated | 27 March 2019 10:17 CET | Update | - |
| article html file updated | 14 July 2016 14:21 CEST | Original file | - |
| article xml uploaded. | 14 July 2016 14:20 CEST | Original file | https://www.mdpi.com/2079-9268/6/3/12/xml |
| article pdf uploaded. | 14 July 2016 14:20 CEST | Version of Record | https://www.mdpi.com/2079-9268/6/3/12/pdf |
