| article html file updated | 7 February 2020 07:18 CET | Update | https://www.mdpi.com/2079-9292/5/2/18 |
| article html file updated | 5 May 2019 18:33 CEST | Update | N/A |
| article html file updated | 27 March 2019 01:58 CET | Update | N/A |
| article html file updated | 1 July 2016 10:31 CEST | Update | N/A |
| article html file updated | 15 April 2016 09:55 CEST | Original file | N/A |
| article xml uploaded. | 15 April 2016 09:54 CEST | Original file | https://www.mdpi.com/2079-9292/5/2/18/xml |
| article pdf uploaded. | 15 April 2016 09:54 CEST | Version of Record | https://www.mdpi.com/2079-9292/5/2/18/pdf |
