| article html file updated | 7 February 2020 14:26 CET | Update | https://www.mdpi.com/2075-4418/6/3/33 |
| article html file updated | 5 May 2019 05:07 CEST | Update | N/A |
| article html file updated | 28 September 2016 22:59 CEST | Update | N/A |
| article html file updated | 3 September 2016 12:36 CEST | Original file | N/A |
| article xml uploaded. | 3 September 2016 12:35 CEST | Original file | https://www.mdpi.com/2075-4418/6/3/33/xml |
| article pdf uploaded. | 3 September 2016 12:35 CEST | Version of Record | https://www.mdpi.com/2075-4418/6/3/33/pdf |
