| article html file updated | 8 February 2020 02:20 CET | Update | https://www.mdpi.com/2076-3425/7/4/33 |
| article html file updated | 24 September 2019 00:45 CEST | Update | N/A |
| article html file updated | 4 May 2019 04:50 CEST | Update | N/A |
| article html file updated | 28 April 2017 05:32 CEST | Update | N/A |
| article html file updated | 27 March 2017 14:33 CEST | Original file | N/A |
| article xml uploaded. | 27 March 2017 14:32 CEST | Original file | https://www.mdpi.com/2076-3425/7/4/33/xml |
| article pdf uploaded. | 27 March 2017 14:32 CEST | Version of Record | https://www.mdpi.com/2076-3425/7/4/33/pdf |
