| article html file updated | 7 February 2020 11:47 CET | Update | https://www.mdpi.com/2304-6740/4/3/22 |
| article html file updated | 5 May 2019 10:00 CEST | Update | - |
| article html file updated | 27 March 2019 10:26 CET | Update | - |
| article html file updated | 28 September 2016 10:54 CEST | Update | - |
| article html file updated | 15 July 2016 14:29 CEST | Original file | - |
| article xml uploaded. | 15 July 2016 14:27 CEST | Original file | https://www.mdpi.com/2304-6740/4/3/22/xml |
| article pdf uploaded. | 15 July 2016 14:27 CEST | Version of Record | https://www.mdpi.com/2304-6740/4/3/22/pdf |
