| article html file updated | 9 February 2020 09:07 CET | Update | https://www.mdpi.com/2311-553X/4/1/7 |
| article html file updated | 1 October 2019 09:42 CEST | Update | N/A |
| article html file updated | 1 May 2019 13:15 CEST | Update | N/A |
| article html file updated | 17 April 2019 12:56 CEST | Update | N/A |
| article html file updated | 29 March 2019 05:00 CET | Update | N/A |
| article html file updated | 27 March 2018 12:22 CEST | Update | N/A |
| article html file updated | 8 March 2018 17:23 CET | Original file | N/A |
| article xml uploaded. | 8 March 2018 17:22 CET | Original file | https://www.mdpi.com/2311-553X/4/1/7/xml |
| article pdf uploaded. | 8 March 2018 17:22 CET | Version of Record | https://www.mdpi.com/2311-553X/4/1/7/pdf |
