| article html file updated | 8 February 2020 04:03 CET | Update | https://www.mdpi.com/2079-9292/6/2/33 |
| article html file updated | 24 September 2019 10:28 CEST | Update | N/A |
| article html file updated | 4 May 2019 01:20 CEST | Update | N/A |
| article html file updated | 28 June 2017 13:01 CEST | Update | N/A |
| article html file updated | 20 April 2017 15:07 CEST | Original file | N/A |
| article xml uploaded. | 20 April 2017 15:06 CEST | Original file | https://www.mdpi.com/2079-9292/6/2/33/xml |
| article pdf uploaded. | 20 April 2017 15:06 CEST | Version of Record | https://www.mdpi.com/2079-9292/6/2/33/pdf |
