| article html file updated | 7 February 2020 05:27 CET | Update | https://www.mdpi.com/2075-471X/5/1/12 |
| article html file updated | 5 May 2019 22:26 CEST | Update | - |
| article html file updated | 26 March 2019 22:34 CET | Original file | - |
| article xml uploaded. | 4 March 2016 08:43 CET | Original file | https://www.mdpi.com/2075-471X/5/1/12/xml |
| article pdf uploaded. | 4 March 2016 08:43 CET | Version of Record | https://www.mdpi.com/2075-471X/5/1/12/pdf |
