| article html file updated | 7 February 2020 11:51 CET | Update | https://www.mdpi.com/2304-6775/4/3/23 |
| article html file updated | 5 May 2019 09:52 CEST | Update | N/A |
| article html file updated | 27 March 2019 10:35 CET | Update | N/A |
| article html file updated | 29 September 2016 09:57 CEST | Update | N/A |
| article html file updated | 18 July 2016 11:42 CEST | Original file | N/A |
| article xml uploaded. | 18 July 2016 11:41 CEST | Original file | https://www.mdpi.com/2304-6775/4/3/23/xml |
| article pdf uploaded. | 18 July 2016 11:41 CEST | Version of Record | https://www.mdpi.com/2304-6775/4/3/23/pdf |
