| article html file updated | 7 February 2020 10:48 CET | Update | https://www.mdpi.com/2079-6374/6/3/30 |
| article html file updated | 5 May 2019 11:46 CEST | Update | - |
| article html file updated | 27 March 2019 08:37 CET | Update | - |
| article html file updated | 28 September 2016 22:48 CEST | Update | - |
| article html file updated | 27 June 2016 09:10 CEST | Original file | - |
| article xml uploaded. | 27 June 2016 09:09 CEST | Original file | https://www.mdpi.com/2079-6374/6/3/30/xml |
| article pdf uploaded. | 27 June 2016 09:09 CEST | Version of Record | https://www.mdpi.com/2079-6374/6/3/30/pdf |
