| article html file updated | 14 August 2026 15:15 CEST | Update | https://www.mdpi.com/1999-4907/8/6/218 |
| article html file updated | 8 February 2020 08:40 CET | Update | N/A |
| article html file updated | 25 September 2019 10:24 CEST | Update | N/A |
| article html file updated | 3 May 2019 16:45 CEST | Update | N/A |
| article html file updated | 27 June 2017 11:20 CEST | Update | N/A |
| article html file updated | 19 June 2017 12:34 CEST | Original file | N/A |
| article xml uploaded. | 19 June 2017 12:33 CEST | Original file | https://www.mdpi.com/1999-4907/8/6/218/xml |
| article pdf uploaded. | 19 June 2017 12:33 CEST | Updated version of record | https://www.mdpi.com/1999-4907/8/6/218/pdf |
| article pdf uploaded. | 19 June 2017 10:20 CEST | Version of Record | https://www.mdpi.com/1999-4907/8/6/218/pdf-vor |
