| article html file updated | 8 February 2020 04:02 CET | Update | https://www.mdpi.com/1999-4907/8/4/127 |
| article html file updated | 24 September 2019 10:21 CEST | Update | N/A |
| article html file updated | 4 May 2019 01:22 CEST | Update | N/A |
| article html file updated | 28 April 2017 06:43 CEST | Update | N/A |
| article html file updated | 20 April 2017 13:32 CEST | Original file | N/A |
| article xml uploaded. | 20 April 2017 13:31 CEST | Original file | https://www.mdpi.com/1999-4907/8/4/127/xml |
| article pdf uploaded. | 20 April 2017 13:31 CEST | Version of Record | https://www.mdpi.com/1999-4907/8/4/127/pdf |
