| article html file updated | 9 February 2020 14:19 CET | Update | https://www.mdpi.com/2227-7072/6/2/44 |
| article html file updated | 2 October 2019 17:48 CEST | Update | N/A |
| article html file updated | 1 May 2019 02:30 CEST | Update | N/A |
| article html file updated | 17 April 2019 03:00 CEST | Update | N/A |
| article html file updated | 29 March 2019 16:49 CET | Update | N/A |
| article html file updated | 27 June 2018 20:19 CEST | Update | N/A |
| article html file updated | 18 April 2018 11:40 CEST | Original file | N/A |
| article pdf uploaded. | 18 April 2018 11:38 CEST | Version of Record | https://www.mdpi.com/2227-7072/6/2/44/pdf |
| article xml uploaded. | 18 April 2018 11:38 CEST | Update | https://www.mdpi.com/2227-7072/6/2/44/xml |
| article xml file uploaded | 18 April 2018 11:38 CEST | Original file | N/A |
