| article html file updated | 7 February 2020 04:52 CET | Update | https://www.mdpi.com/2075-4418/6/1/12 |
| article html file updated | 5 May 2019 23:39 CEST | Update | - |
| article html file updated | 26 March 2019 21:21 CET | Update | - |
| article html file updated | 28 March 2016 11:27 CEST | Original file | - |
| article xml uploaded. | 23 February 2016 09:48 CET | Original file | https://www.mdpi.com/2075-4418/6/1/12/xml |
| article pdf uploaded. | 23 February 2016 09:48 CET | Version of Record | https://www.mdpi.com/2075-4418/6/1/12/pdf |
