| article html file updated | 7 February 2020 04:55 CET | Update | https://www.mdpi.com/2304-6775/4/1/5 |
| article html file updated | 5 May 2019 23:31 CEST | Update | N/A |
| article html file updated | 26 March 2019 21:28 CET | Update | N/A |
| article html file updated | 29 March 2016 11:09 CEST | Original file | N/A |
| article pdf uploaded. | 24 February 2016 09:38 CET | Version of Record | https://www.mdpi.com/2304-6775/4/1/5/pdf |
| article xml uploaded. | 24 February 2016 09:38 CET | Original file | https://www.mdpi.com/2304-6775/4/1/5/xml |
