| article html file updated | 8 February 2020 06:25 CET | Update | https://www.mdpi.com/2079-8954/5/2/39 |
| article html file updated | 3 May 2019 20:57 CEST | Update | N/A |
| article html file updated | 29 June 2017 11:53 CEST | Update | N/A |
| article html file updated | 22 May 2017 05:14 CEST | Update | N/A |
| article html file updated | 21 May 2017 13:21 CEST | Original file | N/A |
| article xml uploaded. | 21 May 2017 13:20 CEST | Original file | https://www.mdpi.com/2079-8954/5/2/39/xml |
| article pdf uploaded. | 21 May 2017 13:20 CEST | Version of Record | https://www.mdpi.com/2079-8954/5/2/39/pdf |
