| article html file updated | 9 February 2020 18:39 CET | Update | https://www.mdpi.com/2075-4663/6/2/46 |
| article html file updated | 3 October 2019 20:51 CEST | Update | N/A |
| article html file updated | 30 April 2019 17:33 CEST | Update | N/A |
| article html file updated | 16 April 2019 17:59 CEST | Update | N/A |
| article html file updated | 30 March 2019 03:37 CET | Update | N/A |
| article html file updated | 25 June 2018 12:42 CEST | Update | N/A |
| article html file updated | 23 May 2018 06:20 CEST | Original file | N/A |
| article pdf uploaded. | 23 May 2018 06:18 CEST | Version of Record | https://www.mdpi.com/2075-4663/6/2/46/pdf |
| article xml uploaded. | 23 May 2018 06:18 CEST | Update | https://www.mdpi.com/2075-4663/6/2/46/xml |
| article xml file uploaded | 23 May 2018 06:18 CEST | Original file | N/A |
