| article html file updated | 7 February 2020 10:27 CET | Update | https://www.mdpi.com/2304-6775/4/2/17 |
| article html file updated | 21 September 2019 19:24 CEST | Update | - |
| article html file updated | 5 May 2019 12:25 CEST | Update | - |
| article html file updated | 27 March 2019 07:58 CET | Update | - |
| article html file updated | 4 July 2016 10:26 CEST | Update | - |
| article html file updated | 20 June 2016 15:23 CEST | Original file | - |
| article xml uploaded. | 20 June 2016 15:21 CEST | Original file | https://www.mdpi.com/2304-6775/4/2/17/xml |
| article pdf uploaded. | 20 June 2016 15:21 CEST | Version of Record | https://www.mdpi.com/2304-6775/4/2/17/pdf |
