| article html file updated | 14 August 2026 15:21 CEST | Update | https://www.mdpi.com/1999-4907/8/7/221 |
| article html file updated | 8 February 2020 09:02 CET | Update | N/A |
| article html file updated | 25 September 2019 12:21 CEST | Update | N/A |
| article html file updated | 3 May 2019 16:03 CEST | Update | N/A |
| article html file updated | 1 August 2017 08:41 CEST | Update | N/A |
| article html file updated | 23 June 2017 09:36 CEST | Original file | N/A |
| article xml uploaded. | 23 June 2017 09:35 CEST | Original file | https://www.mdpi.com/1999-4907/8/7/221/xml |
| article pdf uploaded. | 23 June 2017 09:35 CEST | Updated version of record | https://www.mdpi.com/1999-4907/8/7/221/pdf |
| article pdf uploaded. | 22 June 2017 16:48 CEST | Updated version of record | https://www.mdpi.com/1999-4907/8/7/221/pdf-vor |
| article pdf uploaded. | 22 June 2017 16:45 CEST | Version of Record | https://www.mdpi.com/1999-4907/8/7/221/pdf-vor |
