| article html file updated | 7 February 2020 08:43 CET | Update | https://www.mdpi.com/2079-9292/5/2/21 |
| article html file updated | 5 May 2019 15:46 CEST | Update | N/A |
| article html file updated | 27 March 2019 04:43 CET | Update | N/A |
| article html file updated | 1 July 2016 10:38 CEST | Update | N/A |
| article html file updated | 16 May 2016 23:37 CEST | Original file | N/A |
| article xml uploaded. | 14 May 2016 11:00 CEST | Original file | https://www.mdpi.com/2079-9292/5/2/21/xml |
| article pdf uploaded. | 14 May 2016 11:00 CEST | Version of Record | https://www.mdpi.com/2079-9292/5/2/21/pdf |
