| article html file updated | 8 February 2020 04:47 CET | Update | https://www.mdpi.com/1999-4893/10/2/50 |
| article html file updated | 24 September 2019 14:21 CEST | Update | N/A |
| article html file updated | 4 May 2019 00:01 CEST | Update | N/A |
| article html file updated | 28 June 2017 12:25 CEST | Update | N/A |
| article html file updated | 4 May 2017 13:02 CEST | Original file | N/A |
| article xml uploaded. | 4 May 2017 13:01 CEST | Original file | https://www.mdpi.com/1999-4893/10/2/50/xml |
| article pdf uploaded. | 4 May 2017 13:01 CEST | Updated version of record | https://www.mdpi.com/1999-4893/10/2/50/pdf |
| article pdf uploaded. | 30 April 2017 07:00 CEST | Version of Record | https://www.mdpi.com/1999-4893/10/2/50/pdf-vor |
