| article html file updated | 7 February 2020 12:20 CET | Update | https://www.mdpi.com/1999-4907/7/8/155 |
| article html file updated | 5 May 2019 08:59 CEST | Update | N/A |
| article html file updated | 27 March 2019 11:28 CET | Update | N/A |
| article html file updated | 25 August 2016 11:47 CEST | Update | N/A |
| article html file updated | 26 July 2016 11:40 CEST | Original file | N/A |
| article xml uploaded. | 26 July 2016 11:39 CEST | Original file | https://www.mdpi.com/1999-4907/7/8/155/xml |
| article pdf uploaded. | 26 July 2016 11:39 CEST | Version of Record | https://www.mdpi.com/1999-4907/7/8/155/pdf |
