| article html file updated | 8 February 2020 03:08 CET | Update | https://www.mdpi.com/2075-5309/7/2/33 |
| article html file updated | 24 September 2019 05:14 CEST | Update | - |
| article html file updated | 4 May 2019 03:06 CEST | Update | - |
| article html file updated | 28 June 2017 12:46 CEST | Update | - |
| article html file updated | 7 April 2017 15:48 CEST | Original file | - |
| article xml uploaded. | 7 April 2017 15:46 CEST | Update | https://www.mdpi.com/2075-5309/7/2/33/xml |
| article pdf uploaded. | 7 April 2017 15:46 CEST | Version of Record | https://www.mdpi.com/2075-5309/7/2/33/pdf |
