| article html file updated | 9 February 2020 16:39 CET | Update | https://www.mdpi.com/2227-7072/6/2/48 |
| article html file updated | 3 October 2019 08:00 CEST | Update | N/A |
| article html file updated | 30 April 2019 21:51 CEST | Update | N/A |
| article html file updated | 16 April 2019 22:20 CEST | Update | N/A |
| article html file updated | 29 March 2019 22:32 CET | Update | N/A |
| article html file updated | 27 June 2018 20:20 CEST | Update | N/A |
| article html file updated | 7 May 2018 13:42 CEST | Original file | N/A |
| article pdf uploaded. | 7 May 2018 13:40 CEST | Version of Record | https://www.mdpi.com/2227-7072/6/2/48/pdf |
| article xml uploaded. | 7 May 2018 13:40 CEST | Update | https://www.mdpi.com/2227-7072/6/2/48/xml |
| article xml file uploaded | 7 May 2018 13:40 CEST | Original file | N/A |
