| article html file updated | 7 February 2020 09:30 CET | Update | https://www.mdpi.com/2304-6740/4/2/17 |
| article html file updated | 5 May 2019 14:13 CEST | Update | N/A |
| article html file updated | 27 March 2019 06:10 CET | Update | N/A |
| article html file updated | 1 July 2016 12:03 CEST | Update | N/A |
| article html file updated | 31 May 2016 09:54 CEST | Original file | N/A |
| article xml uploaded. | 31 May 2016 09:52 CEST | Update | https://www.mdpi.com/2304-6740/4/2/17/xml |
| article pdf uploaded. | 31 May 2016 09:52 CEST | Version of Record | https://www.mdpi.com/2304-6740/4/2/17/pdf |
